Integrated urea decomposition device for flue gas denitration

The utility model relates to the technical field of urea decomposition, and discloses an integrated urea decomposition device for flue gas denitrification, which comprises a main body mechanism, an injection mechanism is arranged at the top of the main body mechanism, and an extraction mechanism is arranged on the left side of the injection mechanism; the main body mechanism comprises a protection tank, a return flue is fixedly connected to the surface of the protection tank, and a dissolving tank is fixedly connected to the inner wall of the protection tank. According to the utility model, the connecting port of the high-temperature fan is connected with the external flue and is used for extracting flue gas, the flue gas is heated by the flue gas heater, when the first thermometer displays a required temperature, urea is extracted by the urea pump and is introduced into the dissolving tank together with the flue gas, and after the urea is surrounded by the heated flue gas, the urea is subjected to decomposit