Dust removing device for dust-containing dry-distillation gas

The utility model discloses a dust removing device for dust-containing dry-distillation gas, and belongs to the technical field of coal mechanicals. The device comprises a dust removing cavity; a filter material inlet is formed in the top part of the dust removing cavity, and while a filter material outlet is formed in the bottom part of the dust removing cavity; a ventilating pipe is arranged below the sidewall of the dust removing cavity; a gas collecting device is arranged in the dust removing cavity; the front sidewall and the rear sidewall of the gas collecting device are fixedly connected with the front inner wall and the rear inner wall of the dust removing cavity; the left sidewall and the right sidewall of the gas collecting device are in clearances to the left inner wall and the right inner wall of the dust removing cavity; the gas collecting device is communicated with a gas water sealing box at the outer part of the dust removing cavity through a pipeline. According to the device, the temperature of the dry-distillation gas in the hot state is gradually reduced from low to high; the temperature of the filter material in the cold state is gradually raised from high to low; therefore, a good temperature gradient can be generated, which is beneficial for dust removal; meanwhile, the dust can be effectively preventing from returning to blend and including; the device has a good application prospect.