Blast furnace flue tail denitration purification device

The utility model discloses a blast furnace flue tail denitration purification device, which relates to the technical field of environmental protection equipment, and comprises a shell, a second temperature control cavity is formed in an SCR reaction container, an EBA reactor is fixedly connected to the upper part of the other side of the shell, and an electron beam generator is fixedly connectedto the upper surface of the EBA reactor. According to the utility model, the first temperature control cavity and the second temperature control cavity are arranged; high-temperature hot air in the furnace is filled in the first temperature control cavity and the second temperature control cavity; proper denitration temperature is provided for the SNCR reaction container and the SCR reaction container; the catalytic effect of the catalytic plate is enhanced; the blast furnace flue gas is ensured to be smoothly denitrified and purified; the EBA reactor and the electron beam generator are arranged, sulfur dioxide and ni