Device capable of reducing blockage of moisture removal system of leaf feeding roller

The utility model relates to a device capable of reducing blockage of a leaf feeding roller moisture removal system. The device comprises a moisture removal air pipe, a machine head cover, a dust removal air pipe, an induced draft fan, a moisture removal screen, a cleaning wheel shaft, a driving device, a pressure regulating device and a conveying device. The pressure regulating device comprises a first arc-shaped groove, an arc-shaped sliding block, a spring, first inclined iron, second inclined iron, a positive and negative lead screw and a lead screw seat; the sweeping wheel shaft is rotationally connected with the arc-shaped sliding block; the circle center of the arc-shaped groove coincides with the circle center of the second driving chain wheel. The first inclined iron and the second inclined iron are in threaded transmission with the positive and negative lead screws simultaneously; a second arc-shaped groove is formed in the lead screw seat; the second arc-shaped groove and the first arc-shaped groov