Rotary crushing device suitable for petroleum drilling

The utility model provides a rotary crushing device suitable for petroleum drilling, which belongs to the technical field of petroleum and natural gas drilling and comprises a rotary body, a shaft sleeve, balls, a sealing ring, an impeller and the like. Wherein a plurality of cutting teeth are arranged on the rotating body, a shaft rib is arranged at one end of the rotating body, a ball mounting ring groove is formed in the shaft rib, and a threaded connection hole assembled with the impeller is formed in the end of the shaft rib. A sealing ring groove is formed in one end face of the shaft sleeve, and a ball mounting ring groove and a sealing ring groove are formed in the shaft sleeve. The impeller comprises a plurality of impeller blades, and one end of the impeller is provided with a mounting structure connected with the shaft neck. The rock debris block crushing device can be arranged on drilling tools such as a drill column and a drill bit, large rock debris blocks and the like can be subjected to second