Sewage slurry pump and using method thereof

The invention relates to the technical field of slurry pumps, in particular to a sewage slurry pump. The sewage slurry pump comprises a driving motor, wherein the right side of the driving motor is fixedly connected with a conveying sleeve through a mounting frame, the front side and the rear side of the conveying sleeve communicate with feeding pipes correspondingly, one end of each feeding pipe communicates with a slurry processor, the left side of the conveying sleeve is sleeved with a sealing plate, and a rotating rod is inserted into the axis of the sealing plate. By using the slurry processor, when slurry enters the material storage cavity in a screen sleeve, the output end of a servo motor rotates, so the slurry accumulated in the screen sleeve can be thrown out under the action of centrifugal force, gravel and impurities in the slurry can be isolated, and large solid particles in the slurry can be effectively removed; and thus, it is guaranteed that the environment is not affected by gravel accumulati