Impeller and water pump using same

The invention relates to the technical field of industrial pumps, in particular to an impeller which comprises an impeller disc and blades arranged on the side wall of the impeller disc, an impeller frame is arranged on the sides, away from the impeller disc, of the blades, and a pipeline assembly allowing liquid to flow through is arranged on the impeller frame. The pipeline assembly comprises a water inlet cavity, a water outlet cavity and a transfer cavity which are formed in the side wall of the impeller disc, the pipeline assembly is formed by the impeller disc and the blades, a water inlet of the water inlet cavity is located in the middle of the impeller frame, and a water outlet of the water outlet cavity is located in the edge of the impeller frame. The transfer cavities are located on the two sides of the impeller disc, liquid enters from the water inlet cavity, flows through the transfer cavities and flows out of a water outlet of the outlet cavity, and a stopping block used for stopping the liquid