Detachable embedded punching drill bit special for coal punching

The invention relates to the field of coal punching drilling equipment, in particular to a detachable embedded punching drill bit special for coal punching. The detachable embedded punching drill bitcomprises a cylindrical drill bit body and is characterized in that three alloy drill bit patches are evenly arranged on the head of the drill bit body at intervals, a conical guide cavity coaxial with the drill bit body is formed in the drill bit body, three threaded holes communicated with the small end of the conical guide cavity are evenly arranged in the peripheral wall of the head of the drill bit body at intervals, the included angle between each threaded hole and the central axis of the drill bit body is 42-45 degrees, a detachable nozzle of arranged in each of the three threaded holes, the outer wall of each nozzle is provided with an outer thread matched with the corresponding threaded hole, a spraying cavity penetrating the length direction of each nozzle is coaxially formed ineach nozzle, each spraying