Compact hot air gun

A compact hot air gun comprising:

• a body;
• an air blowing pump disposed in the body;
• and
• an air outlet tube having an end connected to the air blowing pump and another end extending beyond the body, wherein the air outlet tube includes an insulating seat, an electrically conductive tube, an insulating tube, and a central wire, wherein the insulating seat is disposed in the body, wherein an end of the electrically conductive tube is connected to the insulating seat, wherein another end of the electrically conductive tube extends beyond the body, wherein the insulating tube is disposed in the electrically conductive tube, wherein the insulating tube is disposed opposite to the insulating seat, wherein the central wire is connected to the insulating seat, wherein an end of the central wire extends through an interior of the electrically conductive tube, wherein the central wire is not in contact with the electrically conductive tube;
• and
• a heating coil disposed in the another end of the air outlet tube opposite to the air blowing pump, wherein an end of the heating coil has a first connecting portion, wherein another end of the heating coil has a second connecting portion, wherein the first connecting portion is connected to the electrically conductive tube, and wherein the second connecting portion extends into the insulating tube and is connected to the central wire.