Wet material unloader with scraper cleaning structure for desulfurization gypsum

The wet material discharger comprises a discharging box, a feeding port is formed in the upper end of the discharging box, a discharging port is obliquely formed in the lower end of the discharging box, a rotating shaft is rotationally connected to the center of the discharging box, a plurality of impellers are fixed to the rotating shaft, and the discharging port is connected with the discharging box. The upper ends of the impellers are connected with scraping plates in a clamped mode, a cleaning assembly for cleaning attachments on the surfaces of the impellers and the scraping plates is arranged between each impeller and the corresponding scraping plate, and a cleaning assembly for cleaning the inner side of the discharging box is arranged on one side of the discharging box. According to the wet material unloader with the scraper cleaning structure for the desulfurized gypsum, the cleaning assembly is arranged, scrapers are arranged on the two sides of each set of impeller and scraper, electric sliding blo