The utility model provides a tire vulcanizing metal die. The tire vulcanizing metal die prevents dysfunction of air hole plugs caused by biting rubber and can maintain the exhaust property for a long time. The tire vulcanizing metal die is characterized in that air hole plugs installed in exhaust holes formed in a forming surface are provided with cylindrical valve casings and valve rods inserted in the valve casings; the valve casings are provided with exhaust passages inside; heads of the valve rods are provided with top surfaces and sides; the top surfaces face a cavity; the sides are opposite to inner surfaces of opening parts of the valve casings; adhesion parts and gap parts are arranged by arranging part of fillers between the inner surfaces of the opening parts and the sides of the heads; the adhesion parts fix the valve rods with the top surfaces of the heads protruding from the top surfaces of the opening parts in the valve casings; the gap parts allow ventilation from the cavity to the exhaust pass
