Cyclone separation type porous silencer

The utility model relates to the technical field of oil and gas exploitation emptying, in particular to a cyclone separation type porous silencer. A primary noise reduction cavity, a secondary separation noise reduction cavity and a liquid-gas separation cavity are sequentially arranged from inside to outside, and the liquid-gas separation cavity is connected with a gas inlet pipeline and the gas exhaust pipeline. The secondary separation silencing cavity comprises a silencer inner pipe, spiral fins are spirally wound on the outer wall of the silencer inner pipe, and a certain gap is reserved between the spiral fins and the inner wall of the silencer shell, so that oil and particles are thrown to the inner wall of the silencer shell through centrifugal force during cyclone separation and slide to the bottom of the liquid-gas separation cavity along the inner wall of the silencer shell along with gravity. According to the emptying device, the noise problem in the emptying process can be solved, the separation