Heating hearth capable of improving temperature uniformity

A heating hearth capable of improving temperature uniformity is composed of a furnace wall (1), a furnace cover (15) and a plurality of self-preheating burner bodies (5) which are embedded into and penetrate through the interior and the exterior of the furnace wall. The self-preheating type burner is characterized in that a plurality of self-preheating type burner bodies (5) which are distributed in a staggered manner are arranged on a group of furnace walls (1) which are correspondingly distributed face to face on two sides in the furnace walls (1), and a furnace wall flue gas emission channel inlet (2) is positioned in a hearth; a hot airflow outlet of the self-preheating burner body (5) arranged on the furnace wall on one side is over against a furnace wall flue gas emission channel inlet (2) arranged on the opposite hearth; and a concealed flue gas discharge channel (12) is arranged in each corresponding furnace wall (1) provided with the self-preheating burner body (5). 一种能提高温度均匀性的加热炉膛，由炉墙(1)、炉盖(15)、和嵌置并