Low-noise centrifugal fan

The low-noise centrifugal fan comprises a volute, an impeller assembly and a driving piece, the volute comprises an inclined volute tongue and a volute body, and the volute tongue radius of the end, away from an air outlet, of the inclined volute tongue is larger than that of the other end of the inclined volute tongue; the inclined volute tongue is arranged on the volute body, a sound absorption part is detachably arranged between the inclined volute tongue and the volute body, and the impeller assembly is arranged in the volute body; the driving piece is arranged on the side, away from the air inlet, of the volute body, and the output end of the driving piece penetrates through the volute body to be connected with the impeller assembly. The utility model provides a low-noise centrifugal fan which is characterized in that a sound absorption part is detachably arranged between an inclined volute tongue and a volute body, and airflow noise flowing through the volute tongue is absorbed through the sound absorpt