Mother fire ignition structure for enclosed blast furnace

The utility model relates to an ignition structure of main fire for a closed air blasting stove. The utility model is provided with an air passage and a main gas passage. The central position of the stove is provided with an ignition structure of main fire, and the front section of a longitudinally arranged gas pipe body for main fire is a stove head; an appropriate position at a neck of the stove head is provided with a fumarole; an electronic automatic ignition stick is longitudinally arranged on the side edge of the gas pipe body, and a generating end of the electric arc of the ignition stick and a generating end of the spark of the ignition stick are positioned at appropriate distances away from the outer sides of the end of the fumarole; sparks are generated in the fumarole by means of the generating end of the electric arc to ignite the jetted gas by the fumarole, and the main fire can be burned above the stove head. In the course that the stove is used, the main fire can be closed or opened at any time, and a large amount of gas fuel can be saved.