Circumferentially-biased high-speed centrifugal impeller for inhibiting separation of boundary layer

The circumferential offset high-speed centrifugal impeller capable of restraining boundary layer separation comprises a hub, a blade set is fixedly connected to the wall face of the hub, a groove structure is arranged at the front end of the blade set, and a sawtooth tail edge is arranged at the tail end of the blade set; an inlet of the blade group is arranged close to an inlet of the impeller, and a blade runner is arranged on the blade group and is arranged on the wall surface of the hub; a flow guide cover hood is arranged at the inlet position of the blade group; the hub face is provided with a flow stabilizing plane used for restraining accumulation of low-energy airflow on the suction face. When the high-speed centrifugal impeller operates, the adhesion capacity of the surfaces of the blades to airflow can be improved, the turbulence dissipation strength of the wall faces of the wing-shaped blades can be weakened, and the acting capacity of the impeller to gas can be improved; the invention has the adv