Rotary compressor and refrigeration cycle device

The invention discloses a rotary compressor and a refrigeration cycle device, and relates to the technical field of compressors, the rotary compressor comprises a shell, an air suction pipe, a splitter plate and a motor, the air suction pipe is fixed to the top of the shell, the splitter plate is arranged in an inner cavity, the splitter plate and the lower end of the air suction pipe are arranged at an interval, and a first flow guide channel is formed between the splitter plate and the shell; the outer wall surfaces of at least part of the splitter plates gradually extend downwards from inside to outside; the motor is arranged in the inner cavity and located below the splitter plate. The motor is provided with a second flow guide channel penetrating in the vertical direction. The splitter plate can guide a liquid refrigerant to the inner circumferential wall of the shell and guide the liquid refrigerant downwards through the second guide channel, so that the motor can be cooled, and the performance of the m