Water inlet channel facilitating effective slag interception and installation of rotary grille cleaner

The invention discloses a water inlet channel facilitating effective slag interception and installation of a rotary type grille decontamination machine, a sewage inlet is formed in the left side wall of the water inlet channel, a sewage outlet is formed in the right side wall of the water inlet channel, a ramp with the height gradually increased is formed at the bottom, opposite to the sewage inlet, of the water inlet channel, and the height of the ramp is gradually increased. A sill is formed at the bottom of the water inlet channel on the right side of the ramp, the ramp, the sill, the front side wall and the rear side wall of the water inlet channel and the bottom of the water inlet channel jointly define a bottom mounting positioning groove of the grille cleaner, and guide convex bodies are formed on the front side wall and the rear side wall of the water inlet channel and are obliquely arranged; and the guide convex body is used for guiding the slag to a conveyor belt of the bar screen machine. The water