Waste gas recovery device for semi-coke furnace

The utility model relates to the technical field of semi-coke waste gas recovery devices, and particularly discloses a semi-coke furnace waste gas recovery device which comprises a purification chamber used for purifying waste gas, a storage chamber used for storing the waste gas, a combustion chamber used for combusting the waste gas, a boiling water chamber used for storing boiling water and a warm water chamber used for storing warm water. A flow control structure is arranged in the storage chamber; the flow control structure comprises symmetrical vent grooves and vent holes, plugging blocks used for plugging the vent holes are further slidably connected into the vent grooves, and the ends, away from the vent holes, of the plugging blocks are fixedly connected with reset springs used for resetting the plugging blocks and transmission assemblies used for driving the upper plugging block and the lower plugging block to plug the vent holes in sequence. The semi-coke waste gas recovery device solves the proble