Railway sleeper tamping device

The utility model belongs to the technical field of railway maintenance, and particularly relates to a railway sleeper tamping device which comprises a rail and a supporting plate, a supporting seat is arranged at the bottom of the supporting plate, a sliding table is arranged at the bottom of the supporting seat, pulleys are arranged on the sliding table and connected to the rail in a sliding mode, and mounting seats are arranged on the left side and the right side of the supporting plate. A supporting table is arranged between the left installation base and the right installation base, an air cylinder is arranged on the supporting table, the telescopic end of the bottom of the air cylinder longitudinally penetrates through the supporting table and is connected with a traction base, and a double-shaft air cylinder is arranged on the traction base. The vibration force is transmitted to the pickaxe body and the pickaxe head, disturbing force to ballast is formed, tamping work can be conducted on two rails at t