The utility model provides a low-temperature boiling chlorination furnace. The low-temperature boiling chlorination furnace comprises a furnace body (1). The upper part of the furnace body (1) is provided with a solid material inlet and a gas outlet and the lower part of the furnace body is provided with a slag outlet and a gas material inlet, wherein at least one clapboard (2) is horizontally arranged in the furnace body (1) so as to divide the inside of the furnace body (1) into a plurality of fluidization spaces; and the clapboard (2) is provided with an overflow tube (3) which extends to perforate through the clapboard (2) and a plurality of through holes. By the technical scheme of the utility model, the clapboard can divide the inside of the furnace body into a plurality of regions so as to form an independent bed layer in each region. Therefore, on one hand, solid materials and gas materials in the furnace body are uniformly distributed on each bed layer, and on the other hand, the independent bed layers with low heights are formed so that the fluidization states of the bed layers are convenient to control.