ROTARY COMPRESSOR

A rotary compressor according to an implementation includes an outflow passage through which refrigerant flows out of a compression space, and the outflow passage includes a first outflow guide portion disposed in a main or sub bearing, a second outflow guide portion formed through between both axial ends of a roller, and a third outflow guide portion disposed in a bearing opposite to the bearing with the first outflow guide portion based on the roller, to communicate with the first outflow guide portion through the second outflow guide portion. This can minimize an amount of refrigerant remaining in the compression space, thereby enhancing compression efficiency. A pressure difference on the front of a vane can also be eliminated, which can suppress vane jumping, thereby reducing wear of the vane or cylinder. As the outflow passage is periodically open, refrigerant leakage can be suppressed during a compression stroke, thereby preventing under-compression.