Silencing structure and compressor

The invention provides a silencing structure and a compressor, the silencing structure comprises an air cylinder and a movable assembly, the air cylinder comprises a resonant cavity, and the resonant cavity is used for silencing; the movable assembly is movably connected with the resonant cavity and comprises an elastic part and a barrier part, one end of the elastic part is fixedly arranged on the bearing or the partition plate or the cavity wall of the resonant cavity, the other end of the elastic part is connected with the barrier part, and the barrier part is used for adjusting the effective volume of the resonant cavity; wherein the air pressure pushes the barrier to enable the barrier to slide along the height direction of the resonant cavity. According to the compressor, the movable assembly slides in the resonant cavity, so that the effective volume of the resonant cavity is automatically adjusted according to the working condition of the compressor, different effective volumes correspond to different