Air roller on-line cleaning device

The utility model discloses an air roller on-line cleaning device which comprises a mounting plate, a plurality of supporting rods are fixedly connected to the upper side of the mounting plate, a steam tank is fixedly connected to the upper ends of the supporting rods, a water adding hole is formed in the side wall of the top of the steam tank, and a sealing plug is arranged in the water adding hole. A heater is arranged on the inner bottom side wall of the steam tank, a connecting pipe is fixedly connected to the upper side of the steam tank, a centrifugal fan is fixedly connected to one end of the connecting pipe, a connecting hose is fixedly connected to the air outlet end of the centrifugal fan, and a cleaning air pipe is fixedly connected to the end, away from the centrifugal fan, of the connecting hose. The air roller cleaning device is reasonable in design and ingenious in conception, paper powder in the air roller can be rapidly cleaned under the condition that the air roller is not detached, the pape