Boiler deslagging device

The utility model relates to the technical field of energy conservation of a thermal power plant, and particularly discloses a boiler slag removal device which comprises a slag drying machine, a slag well located above the slag drying machine, a slag crusher located on one side of the slag drying machine, a slag discharge buffer hopper located below the slag crusher and an outer circulation double-chain bucket elevator arranged outside a slope climbing section of the slag drying machine. The outer circulation bucket elevator internally comprises an outer circulation conveyor and an outer circulation chain bucket, the outer circulation conveyor transversely penetrates through the lower portion of a bottom plate of the slag drying machine, the slag drying machine is provided with a sweeping chain driving roller, a motor and a speed reducer which are located at the rear end of the outer circulation double-chain bucket elevator, and a slag bin is arranged at one end of the outer circulation double-chain bucket el