Efficient crust breaking device and crust breaking method for aluminum electrolysis cell

The invention discloses an efficient crust breaking device for an aluminum electrolysis cell in the technical field of aluminum electrolysis. The driving mechanism is connected with the shell assembly; the transmission mechanism is connected with the shell assembly and is movably connected with the driving mechanism; the hammer head assembly is connected with the transmission mechanism, and the hammer head assembly comprises a large hammer head and a small hammer head; the large hammer head is connected with the transmission mechanism, and the small hammer head is arranged at one end, far away from the transmission mechanism, of the large hammer head. According to the efficient crust breaking device for the aluminum electrolysis cell, power is provided through the driving mechanism, the power is transmitted to the hammer head assembly through the transmission mechanism, the surface of an aluminum oxide material is broken through the small hammer head in a point breaking surface mode, and the crust breaking ef