Protection device for preventing lightning backflash

Disclosed is a protection device to prevent back flash when flightening, which refers to a lightening protection device. The utility model comprises a metal air electrode (1), a special resistive suppressor(2), a static screen loop(3), a mainstay(4). The metal air electrode is arranged at the upper side of the special resistive suppressor, and the static screen loop is arranged at the lower side of the special resistive suppressor. The mainstay impenetrates and fixes the metal air electrode, the special resistive suppressor, and the static screen loop together. The utility model mainly solves the problems existed in the current lightening protected devices.