The invention discloses a hard alloy non-core drill bit. The hard alloy non-core drill bit comprises a drill bit body and guide wheels, a bit tool is fixed to one end of the drill bit body, a water passing hole is formed in the bit tool, a powder drainage groove is formed in the exterior of the bit tool, a filtering mechanism border is arranged in the drill bit body, supports are fixed in the filtering mechanism border, a filter net is arranged between the adjacent supports, fixing bases are installed on the exteriors of the supports, fixing rods penetrate into the fixing bases, reset springsare arranged on the exteriors of the fixing rods, the guide wheels are arranged at the ends, close to a rotating disc, of the fixing rods, the rotating disc makes contact with protruding blocks, and acontrol system is arranged inside the drill bit body. Through internal filtering, the hard alloy non-core drill bit can filter cooling fluid or cooling water passing through the interior, accordingly, impurities with large diameters can be filtered away in time and prevented from blocking a water outlet unnecessarily, the workload is reduced when the water passing hole is cleared, and intelligentdetection and control are realized.