Pneumatic mud scraper

The utility model discloses a pneumatic mud scraper. The utility model relates to the technical field of petroleum-natural gas drilling. The device comprises a rack, an overhauling guide rail, a slurry scraping plate, a telescopic cylinder, a working guide rail, a floating mechanism and a swinging mechanism, the maintenance guide rail is arranged on the rack; a pneumatic adjustment driving mechanism mainly composed of a telescopic air cylinder, a working guide rail, a floating mechanism and a swing mechanism is in sliding fit with the working guide rail. The pneumatic adjustment driving mechanism is provided with the slurry scraping plates, the pneumatic adjustment driving mechanism, the slurry scraping plates, the working guide rails and the maintenance guide rails are symmetrically arranged, and the two slurry scraping plates are driven by the pneumatic adjustment driving mechanism to be in a closed or opened state. The mud scraper can be quickly opened and closed during mud scraping, damage to the mud scra