Centrifugal fan convenient to clean

The utility model discloses a centrifugal fan convenient to clean. The utility model discloses a centrifugal fan and belongs to the field of centrifugal fans, the utility model discloses a centrifugalfan convenient to clean. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor installed at the side end of the volute. A rotating rod is connected between the impeller and the rotating end of the motor; the rotating rod penetrates through the side wall of the volute; an air inlet and an air outlet which are communicated with each other are formed in the volute; afilter screen is arranged in the air inlet hole; rotating shafts are fixedly connected to the upper and lower ends of the filter screen; a rotating groove matched with the rotating shaft is formed inthe inner end of the air inlet hole; the rotating shaft is rotationally connected into the rotating groove; a pair of sliding ways are dug in the front end of the volute and located on the two sidesof the filter screen respect