Rough boring head with adjusting water nozzle

The utility model relates to the technical field of machining, in particular to a rough boring head with an adjusting water nozzle. The utility model provides a rough boring head with an adjusting water nozzle. The boring head comprises a boring head body, a sliding groove is formed in the upper bottom face of the boring head body. A blade bearing capable of axially sliding is arranged in the sliding groove; a concave stepped surface is arranged at the joint of the upper bottom surface of the boring head body and the side surface of the boring head body; a water outlet hole is formed in the stepped surface, a cleaning mechanism is arranged in the water outlet hole, the cleaning mechanism comprises a water nozzle and a water outlet channel which are arranged in a matched mode, the water nozzle faces the blade base, the water outlet channel penetrates through the boring head body, a steerable adjusting ball is arranged in the water nozzle, and a threaded hole is formed in the adjusting ball in a penetrating mod