Automatic ignition device

The utility model relates to an automatic ignition device, in particular to an automatic ignition device mounted on a pyrolysis gasification furnace, which belongs to the technical field of waste recycling treatment. The automatic ignition device resolves the problem that in the prior art, the pyrolysis gasification furnace is low in safety factor during ignition and mainly comprises a blocking plate, a motor, a lead screw and an igniter. The blocking plate is provided with a fixing plate, a driving gear is arranged on a power-output shaft of the motor, one end of the lead screw is fixed on the fixing plate, and the other end of the lead screw is provided with a driven gear corresponding to the driving gear. The igniter is arranged outside the blocking plate, the lead screw is provided with a touch switch, and the touch switch controls the motor and the igniter. The automatic ignition device is mainly used for ignition of the pyrolysis gasification furnace.