The utility model discloses a refractory material firing device with a uniform heating function. The combustor comprises a base, a combustion cavity, a slag outlet, a coal inlet and an air inlet, a combustion cavity is formed in the upper portion of the base. A coal inlet is formed in the upper part of the combustion cavity; and the lower portion of the left side position of the combustion cavityis connected with a slag outlet, a containing device is slidably connected into the firing cavity, a cover plate is connected to the outer side of the firing cavity, a containing groove is formed in the containing device, a baffle is fixed to the inner wall of the containing device, and a heat-resisting material is arranged above the baffle. In the using process of the refractory material firing device capable of achieving uniform heating, the whole device can well conduct uniform heating firing work on brick forming refractory materials needing to be fired in the firing device of the whole device, and meanwhile the internal temperature of the whole device can be conveniently reduced in time after firing is completed.