Centrifugal fan suitable for high-temperature flue gas

The utility model discloses a centrifugal fan suitable for high-temperature flue gas. The utility model discloses a centrifugal fan and belongs to the field of centrifugal fans, the utility model discloses a centrifugal fan suitable for high-temperature flue gas. Including a volute, an air outlet is formed in the volute; a motor is mounted at the side end of the volute; a condensation cavity and an impeller cavity are dug in the volute; an impeller is arranged on the inner side of the impeller cavity; a rotating shaft is fixedly connected between the rotating end of the motor and the impeller;the rotating shaft penetrates through the cavity wall of the impeller cavity; the condensation cavity comprises a main condensation cavity and a pair of auxiliary condensation cavities; the main condensation cavity is located between the pair of auxiliary condensation cavities. An air inlet hole and a circulating hole are respectively formed in the cavity walls of the pair of secondary condensation cavities; the air inle