An object of the present invention is to provide a desulfurization and denitrification dust remover in which sulfur and nitrate are more fully oxidized and the discharged exhaust gas does not contaminate the environment. SOLUTION: A supporting connection frame 1, a stable leg 2, a dust storage hopper 3, a reaction tank 4, an observation glass window 5, an external protective frame 6, a smoke absorbing hopper 7, a filter 8, an upper protective plate 9, a catalyst chamber 10, The temperature controller 13 includes a signal light, a setting button, a display, a temperature sensor, a cover, and an integrated circuit board. The cover is welded to the reaction vessel. The setting buttons are equally spaced at equal intervals below the display. The integrated circuit board is disposed inside the cover and electrically connected to the circuit board inside the reaction vessel 4. The temperature sensor is disposed above the cover and electrically connected to the integrated circuit board. By arranging the temperature controller 13, the temperature in the reaction vessel 4 can be adjusted and controlled. [Selected figure] Figure 1
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