Stone fishing device of drilling machine

The utility model discloses a stone fishing device of a drilling machine, which relates to the technical field of engineering construction and comprises a fishing barrel, a lower-layer reinforcing mesh arranged in the fishing barrel and positioned at the bottom of the fishing barrel, and an upper-layer reinforcing mesh arranged in the fishing barrel and positioned above the lower-layer reinforcing mesh, the lower-layer reinforcing mesh is composed of a plurality of lower-layer reinforcing steel bars and is integrally in a spiral inverted cone shape in the fishing barrel, and the cone top faces the top of the fishing barrel and is open. The upper-layer reinforcing mesh is composed of a plurality of upper-layer reinforcing steel bars, the upper-layer reinforcing steel bars are distributed on the cross section of the fishing barrel in a crossed mode, the mesh gap size of the upper-layer reinforcing mesh is smaller than the opening size of the lower-layer reinforcing mesh, and the mesh gap size located in the cen