Device for reducing air leakage of boiler dry deslagging equipment

The invention discloses a device for reducing air leakage of boiler dry deslagging equipment. In the normal operation process of the dry slagging system, natural cold air is used as cooling air of the dry slagging system, the temperature of cooling air entering a furnace is low, the oxygen content is large, the smoke exhaust temperature of the boiler is increased, and the efficiency of the boiler is reduced. The device comprises a boiler furnace (1), a slag bin (2) and dry slag discharging equipment, the slag bin is communicated with the dry slag discharging equipment through a slag discharging channel (3), and two air lock devices are installed on the slag discharging channel; the air locking device comprises an air locking device shell (8) and an air locking plate (7), the air locking plate is located in the slag discharging channel, a rotating shaft (4) connected in a rotating mode is fixedly arranged in the air locking plate in a penetrating mode, the end of the rotating shaft is fixed to an air locking d