Waste gas dust falling device for low-nitrogen combustion of chemical production VOCs (volatile organic compounds)

The utility model discloses a waste gas dust fall device for low-nitrogen combustion of chemical production VOCs (volatile organic compounds), which comprises a pretreatment box and a working box, the pretreatment box is connected with the working box through a connecting pipeline, a first fan is arranged outside the connecting pipeline, a top cover is arranged at the top of the pretreatment box, a second gas injection pipe is arranged at the top of the top cover, and a second gas injection pipe is arranged at the top of the second gas injection pipe. First filter plates are arranged in the pretreatment box at equal intervals; the VOCs waste gas treatment device has the advantages that improvement is carried out based on the defects of an existing VOCs waste gas combustion device, the efficient treatment device which can be simpler in process and more simplified is provided by combining the prior art, waste gas generated after VOCs are combusted can be better treated, the treatment efficiency can be improved,