Coal pyrolysis drying system

The utility model discloses a coal pyrolysis drying system which comprises a pyrolysis furnace, a drying bed, a coke conveying mechanism and a flue gas recovery assembly. The drying bed is of a semi-closed structure with openings in the front end and the rear end, a raw material inlet is formed in the front end of the drying bed, a raw material outlet is formed in the rear end of the drying bed, and a smoke outlet is formed in the top of the drying bed; a discharge port of the pyrolyzing furnace is connected with a raw material inlet of the drying bed, and a raw material outlet of the drying bed is connected with a feed port of the coke conveying mechanism; and the flue gas outlet is communicated with the gas inlet of the flue gas recovery assembly. The problem that in the prior art, a drying bed is arranged in the open air, and drying smoke cannot be recycled is solved. The system does not cause serious environmental pollution, meanwhile, the open fire drying heat efficiency is improved, energy is saved, and