Emergency rescue drilling obstacle dredging device and using method

The invention discloses an emergency rescue drilling barrier dredging device which is inserted into a steel sheath and comprises a main shaft base, a rotating main shaft is integrally formed at the outer end of the main shaft base, a torque transmission drill rod is installed at the inner end of the main shaft base, threads are formed at the outer end of the outer wall of the rotating main shaft, and the inner end of the outer wall of the rotating main shaft is sleeved with an opening mechanism base. The outer surface of the main shaft base is fixedly provided with a steel sheath, the outer surface of the opening mechanism base is fixedly provided with an opening mechanism, the inner end of the outer wall of the main shaft base is provided with a torsion transmission disc, and the outer wall of the torsion transmission disc is fixedly provided with a sheath inserted into the steel sheath through screws. According to the emergency rescue drilling obstacle dredging device, the opening mechanism in the emergency