Roll paper powder removing device of rotary press

The invention discloses a rotary press roll paper powder removing device which comprises a supporting face wall plate, a transmission face wall plate, a collecting box, a transmission support, a cleaning support and an air pump, the collecting box is arranged between the supporting face wall plate and the transmission face wall plate, and the collecting box is composed of a collecting box a and a collecting box b; a gap between the collecting box a and the collecting box b is arranged to be a paper conveying channel, an inner cavity of the collecting box is sequentially provided with a paper feeding cavity, a negative pressure cleaning cavity and a paper discharging cavity from top to bottom, cleaning rollers which are symmetrical to each other are arranged in the negative pressure cleaning cavity, cleaning brushes are arranged on the cleaning rollers in the circumferential direction, and the transmission supports are arranged on the two sides of the collecting box. A transmission shaft is arranged on the tra