Whole-section hard rock stratum wear-resistant alloy serrated knife

The utility model relates to the field of mechanical appliances, and discloses a full-section hard rock stratum wear-resistant alloy serrated knife which comprises a main body, first connecting discs are fixedly connected to the front side wall and the rear side wall of the main body respectively, and second connecting discs are fixedly connected to the centers of the other side walls of the two first connecting discs respectively. And connecting shafts are fixedly connected to the centers of the other side walls of the two second connecting discs correspondingly, a plurality of mining structures are arranged on the side wall of the main body, and small teeth are arranged between every two adjacent mining structures. The first connecting discs are arranged on the two side walls of the main body respectively, meanwhile, the tungsten carbide particle wear-resistant layers are arranged on the side walls of the two first connecting discs respectively, the overall wear resistance and protection performance are imp