Flue gas treatment device and thermal power generation system with same

The embodiment of the utility model provides a flue gas treatment device and a thermal power generation system with the same. Wherein the flue gas treatment device comprises a desulfurization absorption tower, a gas inlet pipe, an oxidation fan and an oxygen regulation and control system, the desulfurization absorption tower is provided with a flue gas inlet, an aeration port and a flue gas outlet, the flue gas outlet can be communicated with the outside, and the gas inlet pipe is provided with a flue gas inlet, a first flue gas outlet and a second flue gas outlet; a smoke inlet of the gas inlet pipe can be communicated with a smoke exhaust pipe, the first smoke exhaust port is communicated with the smoke inlet of the desulfurization absorption tower, the oxidation fan is provided with a first gas inlet, a second gas inlet and a gas exhaust port, the first gas inlet can be communicated with the outside, the second gas inlet is communicated with the second smoke exhaust port, and the gas exhaust port is commun