The invention provides a hot-blast stove double-preheating device. According to the invention, high-temperature hot-blast stove waste gas is adopted as a preheating source; and air and coal gas are subjected to preheating and combustion supporting by using a heat accumulation chamber hot-blast stove and plate-type heat exchangers. The device is characterized in that anchoring bolts are provided on the surface of a hot-blast stove heat accumulation chamber column, and a refractory layer is spray-coated; the heat exchangers adopt a plate-type structure; an air heat exchanger and a coal gas heat exchanger are connected in parallel; and hot-blast stove flue waste gas and air and coal gas form a countercurrent arrangement. According to the invention, high-temperature waste gas is directly used as a preheating source, such that a combustion furnace system in prior arts is eliminated, land occupation is reduced, and process arrangement is more flexible. Heat accumulation chamber checker brick height is reduced by 8-10%, and the combustion furnace system is eliminated, such that infrastructural costs are saved. According to the invention, the plate-type heat exchangers are adopted as heat transfer and heat exchange devices. Compared with a tube heat exchanger, equipment volume and weight are reduced, a heat transfer efficiency is high, equipment installation is simple, and maintenance is convenient. Therefore, equipment service life and reliability are greatly improved.