The invention discloses a rotating compressor and a
refrigeration system provided with the same. An electro-dynamic motor, a rotating compression mechanism and lubricating oil are accommodated in a closed casing of the rotating compressor, a suction
pipe communicated with the interior of the casing is arranged on the casing, and the motor comprises a
stator and a rotor. The compression mechanism comprises an eccentric shaft for fixing the rotor, a
main bearing, an auxiliary bearing, an air cylinder connected with the
main bearing and the auxiliary bearing and a suction
muffler arranged on the
main bearing, wherein the main bearing and the auxiliary bearing are used for supporting the eccentric shaft in a sliding manner; a rotating
barrel is fixed on the side, adjacent to the main bearing, of the rotor, and is communicated with the suction
muffler; low-pressure
refrigerant sucked from the suction
pipe reaches the inner side of the rotating
barrel from the outer side of the rotating
barrel and flows into a compression cavity of the air cylinder through the suction
muffler. According to the rotating compressor, the rotating barrel can have an air-liquid separation function, the compression efficiency is guaranteed, and liquid compression of the compression cavity is avoided.