Efficient flue gas treatment device

The invention is suitable for the technical field of flue gas treatment, and provides an efficient flue gas treatment device which comprises a combustion assembly, a filtering assembly, a heat exchanger and a water storage tank, the combustion assembly comprises a combustion tower, waste gas is conveyed into a combustion chamber of the combustion tower, after combustion-supporting gas is conveyed, the waste gas is combusted, particulate matter in the waste gas is reduced, and the temperature of the waste gas is increased; the heat exchanger is used for converting combusted waste gas, the heat conversion rate is increased, particulate matter is prevented from damaging pipelines of the heat exchanger, and the service life of the heat exchanger is prolonged; meanwhile, the water storage tank outputs cooling water through a first water pump and a second water pump, the interior of the combustion tower is cleaned through a spraying pipe, the cooling water is sprayed to a water curtain in the filtering tank through