High-blast-temperature hot-blast stove burnt in convection swirling heat storage medium

The invention relates to a high-blast-temperature hot-blast stove burnt in a convection swirling heat storage medium, effectively solving the problems of complicated structure, non-uniform gas mixing, insufficient burning, environmental pollution and energy waste. The stove adopts the structure that a pre-burning chamber of a bell jar on the top of a ball and a taper-section barrel-shaped burningchamber below the pre-burning chamber are connected by using a labyrinth without stress action; the taper-section burning chamber is sufficiently filled with porous heat storage bodies; a coal gas inlet pipe and an air inlet pipe are distributed on the vertical wall of the pre-burning chamber; a barrel-shaped heat storage chamber is arranged below the burning chamber, and checker brick heat storage bodies are stacked on grates in the heat storage chamber; a cold air chamber is arranged below the heat storage chamber, and a smoke exhaust pipe and a cold air inlet pipe are connected to the wall; the grates for holding the heat storage bodies are mutually spaced with expansion gaps, put on a beam and supported by grate supporting posts; the supporting posts are fixed on a rigid base of the hot-blast furnace; and a central vault line of the pre-burning chamber is provided with a hot-blast outlet pipe coaxial with the hot-blast furnace. The invention has the advantages of simple structure,high mixed burning intensity, good air flow heat exchange effect and raised hot-blast temperature.