Multi-spoke-plate type centrifugal impeller

The invention discloses a multi-spoke-plate type centrifugal impeller. The multi-spoke-plate type centrifugal impeller comprises a disc body, a plurality of large blades and a plurality of small blades. The large blades and the small blades are evenly distributed on the disc body, a wheel center is arranged in the center of the disc body along the axis, the disc body comprises a plurality of spokeplates arranged in the axial direction of the disc body at intervals, a weight reduction cavity is formed between every two adjacent spoke plates, and the upper edges of the adjacent spoke plates areconnected into a whole. According to the multi-spoke-plate type centrifugal impeller, a plurality of small discs are distributed on the disc body of the centrifugal impeller, the weight reduction cavities are formed between the adjacent spoke plates, thus, on the premise that the strength and deformation requirements of the centrifugal impeller are met, the weight of the centrifugal impeller is greatly reduced, and on the