High-pressure centrifugal slurry pump

The utility model relates to a high-pressure centrifugal slurry pump which comprises a bracket component and a pump shaft and the like. A pump head which is of a double impeller structure is installed on the bracket component. The pump head comprises rotatable components and fixed parts, wherein the rotatable components comprise an impeller A, an impeller B and an auxiliary impeller; and the fixed parts comprise a joint plate, a pump cover, a seal box, a rear protective plate, a pump body A, a middle protective plate, a pump body B, a front protective plate and a support. An outlet of the pump body B and an outlet of the pump body A are in 180-degree symmetry, a conduit is connected between a slurry outlet of the pump body A and a suction inlet of the impeller B, a framework oil seal structure is adopted between the seal box and the pump shaft, and the support is installed on the pump cover. The high-pressure centrifugal slurry pump is high in lift, the lift of the high-pressure centrifugal slurry pump can be as high as 200 m, external shaft seal facilities are not needed, and the high-pressure conveying requirements can be met well.