Three-phase separator with scum intercepting effect

A three-phase separator with a scum intercepting effect relates to the technical field of separation and comprises a shell, a liquid inlet pipe is arranged on the left side surface of the shell close to the top end, a throttle valve is arranged in the liquid inlet pipe, a protective shell is arranged on the left side of the right side surface of the liquid inlet pipe, and a drainage plate is arranged on the left side surface in the shell close to the top end. The motor support is arranged on the surface, close to the left side, of the top end of the shell, a motor is arranged in the motor support, a first connecting column is arranged on the surface of the bottom end of the motor, and a driving gear is arranged at the bottom end of the first connecting column; a driven gear is arranged on the left side of the driving gear, a second connecting column is arranged on the left side surface of the driven gear, a spiral blade and a coalescence plate are arranged on the surface of the second connecting column and ar