The utility model provides a two-stage coke oven, and belongs to the technical field of coking environmental protection and energy conservation. The two-section type coke oven comprises an oven top area and a heat exchange chamber, A waste gas horizontal channel is arranged on the side, close to the furnace top area, of the heat exchange chamber, the waste gas horizontal channel is provided with aplurality of first gas inlets and a first exhaust port, and the first gas inlets communicate with the heat exchange chamber through gas circuits. The waste gas confluence channel comprises a second gas inlet and a second gas outlet; Wherein the second gas inlet is communicated with the first exhaust port through a gas path, the second exhaust port is communicated with the furnace top area througha gas path, and the number of the second exhaust ports is smaller than that of the first exhaust ports.