Hopper convenient to clean for excavator

The utility model relates to the technical field of hoppers for excavators, in particular to a hopper convenient to clean for an excavator. The device comprises two grab buckets, steel rods are welded to the inner walls of the grab buckets, the arc surfaces of the steel rods are rotationally connected with a supporting frame, hydraulic cylinders are rotationally connected to the two sides of the supporting frame correspondingly, one ends of the hydraulic cylinders are rotationally connected with the steel rods, cleaning structures are arranged on the inner walls of the grab buckets, and each cleaning structure comprises two arc-shaped sliding rails; the sides, away from each other, of the two arc-shaped sliding rails are fixedly connected with the grab bucket, sliding blocks are slidably connected to the surfaces of the arc-shaped sliding rails, sliding rods are slidably inserted into the surfaces of the sliding blocks, one ends of the sliding rods are fixedly connected with scraping plates, and one ends of t