Disclosed is a top-combustion type hot air furnace burner, comprising a burner outline, a burner inner mold cavity, a coal gas entry system, and a combustion air entry system. The burner inner mold cavity is formed by building a refractory material lining of the burner outline, and both the coal gas entry system and the combustion air entry system are installed on the refractory material lining. Each of coal gas and combustion air is uniformly injected and introduced into the burner inner mold cavity through a coal gas discharge port and a combustion air discharge port, and also, combustion begins after the coal gas and the combustion air are mixed enough on a lower portion of the burner inner mold cavity. In addition, combustion gas of the high temperature is uniformly distributed onto an upper surface of a heat accumulator after passing through a rear port and an extension section. According to the present invention, the top-combustion type hot air furnace burner enables uniform mixing of air flow and has high combustion efficiency, excellent structural stability, and long life.