Industrial flue gas synchronous desulfurization and denitration method

The invention relates to the technical field of flue gas desulfurization and denitration, and in particular, provides a method for synchronously desulfurizing and denitrifying industrial flue gas, which comprises the following steps at least: S01. mixing the industrial flue gas which has been cooled, dedusted and humidified with ozone to convert the nitric oxide in the industrial flue gas into high-valence nitrogen oxides; S02. carrying out humidifying treatment of the anion ion exchange fiber in an ion exchange tower, then introducing the industrial flue gas treated in the step S01, of which,the sulfur dioxide and the high-valence nitrogen oxides exchange ions with the anion ion exchange fiber, and are adsorbed by the anion ion exchange fiber so as to obtain a gas reaching the dischargestandard. In the method, sulfur dioxide and nitrogen oxide can be removed synchronously, the removal rate of sulfur dioxide and nitrogen oxide reaches higher than 99.0%, and in the finally dischargedflue gas, the content of th