The invention relates to the technical field of waste gas treatment equipment, and particularly discloses a sintering furnace waste gas treatment device. The sintering furnace waste gas treatment device comprises a furnace body, a first cylinder body, a filtering chamber and a spraying chamber; a smoke exhaust pipe is connected to the top of the furnace body and provided with a buffering cavity, arotation shaft is rotatably connected to the side wall of the buffering cavity, a cam and a plurality of blades are coaxially and fixedly connected to the rotation shaft, the blades are located in the buffering cavity, and a jetting nozzle used for jetting flames is installed on the inner wall of the buffering cavity; a first piston is slidably connected to the interior of the first cylinder body, a first piston rod is fixedly connected to the first piston and abuts against the cam, and a gas outlet pipe is arranged between the first cylinder body and the buffering cavity in a communicating mode; and the smoke exhaust pipe is connected to the filtering chamber, and an exhaust pipe is arranged between the filtering chamber and the spraying chamber in a communicating mode. According to thesintering furnace waste gas treatment device, waste gas can be fully combusted in the buffering cavity, smoke dust is removed after the waste gas obtained after combustion is filtered through the filtering chamber, the waste gas obtained after the smoke dust is removed is subjected to spraying desulfurization through the spraying chamber, and then the finally-exhausted waste gas does not contain the smoke dust and sulphur and can not pollute the environment.