The invention discloses a shell dedusting device for an internet-of-things signal receiving terminal. The shell dedusting device structurally comprises a dedusting transmission device, a device shell,hinges, a movable door, a movable handle and a safety lock. The movable door is located on the front surface of the device shell and is movably connected with the device shell through the hinges. Thesafety lock is located on the right side of the front surface of the movable door and embedded into the movable door, and the movable handle is located on the front surface of the movable door and isfixedly connected with the movable door. The dedusting transmission device is located in the device shell and movably connected with the device shell. According to the shell dedusting device, dust onthe surface of the dedusting device can be removed during working of the dedusting device, and thus the purposes that the internal space of the dedusting device is utilized in a maximization mode, and the dedusting device is better improved can be achieved.