Energy-saving plate conveying belt cleaning device

The utility model relates to an energy-saving plate conveying belt cleaning device which comprises a cleaning box arranged below a conveying belt, the top of the cleaning box is open, a guide roller and a brush roller which can be adjusted in a lifting mode are arranged on the left side and the right side of the cleaning box respectively, a first chain wheel is fixed to a rotating shaft of the guide roller, and a supporting shaft is arranged below the brush roller. A second chain wheel is fixed to the supporting shaft, the first chain wheel is connected with the second chain wheel through a chain, a first gear is further fixed to the supporting shaft, the first gear is meshed with a second gear, the second gear is fixed to a rotating shaft of the brush roller, a scraping plate is arranged between the guide roller and the brush roller, and a scraping edge inclining towards the brush roller is arranged at the top of the scraping plate. The cleaning box is arranged at the bottom of the conveying belt, and the br