Drill bit device of deep-stratum mixing pile machine in dense sand stratum

The utility model relates to a drill bit device of a deep-stratum mixing pile machine in a dense sand stratum, and the drill bit device comprises a deep-stratum mixing pile machine drill rod; the bottom of the deep-stratum mixing pile machine drill rod is provided with a deep-stratum mixing pile machine blade, the deep-stratum mixing pile machine blade is provided with a plurality of deep-stratum mixing pile machine drilling tools, and each deep-stratum mixing pile machine drilling tool is fixedly connected with a carbide cutting tool. The drill bit device has beneficial effects that simplicity in installation and flexibility in dismounting and replacement can be realized; the stratum application range of the deep-stratum mixing pile machine is enlarged; the drilling speed and the working efficiency of the deep-stratum mixing pile machine can be improved; and the cost can be saved.