Tool bit of mountain land soil-loosening weed extractor

The invention relates to a weed extractor, in particular to a tool bit of a mountain soil loosening weed extractor, and solves the use problem of the tool bit of the weed extractor. Comprising two cutterheads and a knife rest which are assembled in a linkage mode, the cutterheads are arranged on the two opposite side faces of the knife rest respectively, a plurality of outer knife assemblies are arranged on the end faces of the sides, back on to the knife rest, of the cutterheads, a plurality of inner knife assemblies are arranged on the sides, facing the knife rest, of the cutterheads, and the outer knife assemblies and the inner knife assemblies comprise vertical blades and inclined blades. The vertical blades and the inclined blades are arranged on the outer edges of the cutter heads, the vertical blades are perpendicular to the radial direction of the cutter heads, included angles are formed between the inclined blades and the radial direction of the cutter heads, the cutter heads effectively prevent the