Smoking gun for fire-fighting equipment detection

The utility model discloses a smoke adding gun for fire-fighting equipment detection, which comprises a mounting box, two cavities are arranged in the mounting box, a battery is arranged in one cavity, a fan and three isolation filter screens are arranged in the other cavity, two air inlet holes are formed in one side, close to the cavity where the fan is located, of the mounting box, and two air outlet holes are formed in one side, close to the cavity where the fan is located, of the mounting box. A protective filter screen is fixedly connected to one end of the mounting box, a heating wire and a flue are fixedly connected to the side, close to the protective filter screen, of the mounting box, a protective ring is fixedly connected to the inner wall of the flue, a limiting cover and a cigarette making incense plate are attached to the inner wall of the protective ring, and a top cover is in threaded connection with the tail end of the flue. The arrangement of the mounting box facilitates the better protecti