Tunnel dredging robot

The invention discloses a tunnel desilting robot in the technical field of water conservancy desilting, which comprises a main box body, a rotating box and a sludge pump, a driving cavity and a processing cavity are arranged in the main box body, a first filter screen, a second filter screen and a screw shaft are arranged in the driving cavity, an adjusting assembly and a telescopic assembly are arranged on the rotating box, and a scraper is arranged above the rotating box. The positions of the scraping plate and the stirring assembly are adjusted through the adjusting assembly and the telescopic assembly, and the tunnel cleaning device adapts to tunnels of different sizes; the rotating box moves through the driving assembly, the scraper moves along the wall face of the upper portion of the tunnel, a small amount of sludge attached to the wall face of the upper portion of the tunnel is scraped and cleaned, meanwhile, the stirring assembly stirs the sludge and water deposited on the lower portion of the tunnel