Centrifugal pump with filtering function

The centrifugal pump with the filtering function comprises a pump body, a motor used for driving the pump body to operate and a connecting assembly arranged between the pump body and the motor, a filtering device is arranged at a water inlet of the pump body, a medium enters the filtering device when the pump body operates, and the filtering device is used for filtering the medium before the medium enters the pump body. The filtering device comprises a filtering shell which is arranged at the water inlet of the pump body and is communicated with the water inlet of the pump body, and an inlet pipe which is arranged on one side of the filtering shell and is used for allowing a medium to enter the filtering shell; the filter barrel is detachably arranged in the filter shell and is used for filtering an entered medium when the medium enters the filter shell through an inlet pipe, the mounting opening is formed in the filter shell, and the positioning assembly is arranged between the filter shell and the filter ba