The invention relates to a positive-pressure discharge device capable of being conveniently cleaned. The positive-pressure discharge device comprises a discharge device shell body, a feeding port and,a discharging port, a rotating shaft, blades and a driving mechanism I, wherein the feeding port and the discharging port are connected to the discharge device shell body, the rotating shaft is connected to the interior of the discharge device shell body, the blades are connected to the rotating shaft, and the driving mechanism I is used for driving the rotating shaft to rotate; and a cleaning mechanism is connected to the interior of the discharge device shell body perpendicular to the rotating shaft, the cleaning mechanism comprises a groove arranged inside the discharge device shell body,a telescopic mechanism is connected in the groove, a connecting plate perpendicular to the rotating shaft is connected to the telescopic mechanism, and brush bristles I are connected to the connectingplate. The invention provides a positive-pressure discharge device capable of being conveniently cleaned, and the discharge device has the advantages that cleaning can be carried out at any time, theoperation is simple, the spending time required by workers is short, and the cleaning efficiency is high.