Air circulating roaster

An air-circulating roaster, comprising:

• a cylindrical container comprising an open top and a body, wherein the body comprises a bottom surface with a second penetration hole through a center of the bottom surface;
• a heating part for cooking meat by dissipating heat from an inner center of the body;
• a bottom container positioned on the top of an inner bottom of the body so as to support the heating part from below;
• wherein the bottom container comprises an open-bottom and a plurality of third penetration holes formed at regular intervals and positioned on the top of the bottom container;
• wherein the bottom container and an outer heat insulating container form an open-top insulation support beam that accommodates a part of the heating part;
• a lower ring inserted between the open-top insulation support beam and the body so as to contact the inner bottom of the body;
• an oil sump formed at the top of the lower ring;
• a table ring provided on the top of the oil sump, wherein the table ring comprises first penetration holes formed at regular intervals;
• wherein the lower ring and the table ring form an outer insulation part spaced apart from the heating part and the open-top insulation support beam in the outer direction;
• a roasting plate positioned on an upper side of the heating part, wherein the roasting plate is configured to accommodate meat on the top of roasting plate, wherein the meat is cooked by heat from the heating part;
• an oil outlet formed at regular intervals on the upper side of the oil sump;
• blowers configured to suck air containing foreign substances comprising smoke, moisture, or oil generated from the meat being cooking on the roasting plate of the body through the first penetration holes, wherein the air is sent into a first air layer formed between the outer insulation part and the body;
• a bottom cap comprising:
• an open top and a second air layer formed inside, wherein the bottom cap comprises a sidewall with a channel to drain the air containing foreign substances accumulated in the first air layer into the second air layer by the blower;
• a drainage groove comprising a gap between the outer heat insulating container and the oil sump;
• a combustion device comprising:
• a plurality of support beams configured to support the oil sump and located under the drainage groove;
• and
• a heating element made of carbon fiber;
• a third air layer formed between the open-top insulation support beam and the outer insulation part;
• wherein the air containing foreign substances passes consecutively through the first penetration holes, the first air layer, the second air layer, the second penetration hole, the third penetration holes, the third air layer, the drainage groove, and the oil outlet, wherein the air containing foreign substances reenters the first air layer and circulates;
• wherein the heating part is configured to dry moisture in the air containing foreign substances in the third air layer,
• wherein a portion of the oil drops into the body and another portion of the oil is burned by the combustion device.