The utility model discloses an induced flow device for nitrogen generation. The induced flow device is mainly composed of an ignition head, an exploder, a booster tube, a detonating cord, gas generation agents and a case. The ignition head is arranged on the top of the exploder, the exploder is connected with the detonating cord through the booster tube, and the case is filled with the gas generation agents connected with the detonating cord. A firing pin ignition head is adopted as the ignition head. The induced flow device further comprises an ignition rod. The ignition rod is put into an oil tube from the upper port of the oil tube, drops along the oil tube and hits against the firing pin ignition head. A firing pin of the firing pin ignition head hits against the exploder, and then the exploder is detonated. According to the structural form, the induced flow device has the advantages that the number of induced flow work devices is small, the work process is simple, the efficiency is high, the cost is low and the stability is high.