Slurry centrifugal pump

The slurry centrifugal pump comprises a main shaft, a shaft seal, a suction inlet tee joint, a pump cover, an impeller, a pump body and a shaft sleeve, the main shaft is sleeved with the shaft sleeve, the shaft sleeve is located in the suction inlet tee joint, the shaft sleeve is sleeved with an anti-rotation sleeve located in the suction inlet tee joint, and the anti-rotation sleeve comprises a sleeve body and an installation base at one end of the sleeve body. And the mounting seat is clamped between the suction inlet tee joint and the shaft seal and is in compression joint with the end part of the suction inlet tee joint. The anti-rotation sleeve is arranged, so that when fluid in a pipeline passes through the suction inlet tee joint, the fluid cannot be driven to rotate by the rotation of the main shaft, centrifugal force is generated, a liquid ring is formed, choked flow is generated, and the conveying efficiency is improved; meanwhile, fluid in the suction inlet tee joint does not rotate any more, accum