Single cyclone separator uses certain pressure to inject liquid containing particles and impurities along the tangent direction of the inlet mouth with high speed into the cyclone separator ,and by the downward spiral motion, causes the liquid to form eddy current in the cone, the solid particles in liquid is flung to the cone of the wall by centrifugal force. Under the drive of gravity and fluid ,the solid particles along the wall is discharged by discharge port .After separation ,clean liquid along the axis of the cone after reach the bottom ,it formed vortex inside, finally discharge from the outlet of the vortex separator, so as to achieve net and dirty liquid separation.