Heating and circulating integrated type low-medium temperature processing and heat treating furnace for metals

The utility model discloses a heating and circulating integrated type low-medium temperature processing and heat treating furnace for metals. The heating and circulating integrated type low-medium temperature processing and heat treating furnace for the metals comprises a wall body, a circulating fan, coil heaters, an integral plug body and heater hanging insulating layers, wherein the integral plug body is mounted into the wall body and is fixedly connected with the top part of the wall body; the circulating fan is mounted below the integral plug body; the heater hanging insulating layers are connected to the lower part of the integral plug body and uniformly distributed in the periphery of the circulating fan; the coil heaters are fixedly connected with the heater hanging insulating layers and uniformly distributed in the periphery of the circulating fan. According to the heating and circulating integrated type low-medium temperature processing and heat treating furnace for the metals, the heaters and the circulating fan are organically combined, so that the metals in the furnace can be uniformly heated, the mounting and wire arranging are convenient, the faults caused by thermal deformation of a steel plate in a window due to dispersive mounting of heaters and circulating fan, increased hot short-circuit points, and long time use can be avoided, and as a result, the risks in device operation can be reduced.