Rotary compressor

A rotary compressor comprising:

• a casing;
• a motor to be disposed inside the casing;
• a compression part to be disposed below the motor;
• a plurality of refrigerant passages configured to penetrate the compression part along an edge of the compression part;
• an upper muffler, to be disposed on an upper surface of the compression part, forming an upper muffler space that allows refrigerant to be introduced thereto along a vertical direction of the rotary compressor through the plurality of refrigerant passages;
• an inner muffler, to be disposed on a lower surface of the compression part, forming an inner muffler space that prevents refrigerant from passing through at least one refrigerant passage among the plurality of refrigerant passages and allows the refrigerant to pass through remaining refrigerant passages among the plurality of refrigerant passages;
• an outer muffler, to be disposed below the inner muffler, forming an outer muffler space, the outer muffler being in contact with a portion of the inner muffler and allowing the refrigerant from the inner muffler space prevented from passing through the at least one refrigerant passage to pass through;
• and
• a refrigerant discharge passage, to be provided on the portion of the inner muffler in contact with the outer muffler space, configured such that the refrigerant in the inner muffler space is selectively discharged to the outer muffler space depending on a flow rate of refrigerant discharged from the lower surface of the compression part.