Temperature-controllable heat treatment furnace

The temperature-controllable heat treatment furnace comprises a base, a heat treatment furnace body is arranged on the upper end face of the base, a sealing door is hinged to an opening of the heat treatment furnace body, a plurality of heating pipes are arranged on the inner wall of the heat treatment furnace body at equal intervals, and an external treatment controller controls the heating pipes to work. The heating furnace body works for heating, materials needing to be treated on the bearing device are subjected to heat treatment, the temperature sensor arranged in the heat treatment furnace body is used for detecting the temperature in the heat reaction furnace body, and meanwhile detected temperature information is transmitted into the external treatment controller through an electric signal. And the external processing controller controls the cooling circulating pump to work, and when the cooling circulating pump works, the temperature in the heat treatment furnace body is reduced through the cooling p