Exhaust gas mixing device and vehicle

The embodiment of the invention provides a waste gas mixing device and a vehicle, the device comprises a mixing valve, the mixing valve comprises a valve plate, a first pipeline and a second pipeline, the first pipeline and the second pipeline are communicated with each other, the first end of the first pipeline is used for inputting air, and the second end of the first pipeline is used for outputting mixed gas; the first end of the second pipeline is used for inputting waste gas exhausted by an engine, and the second end of the second pipeline is arranged on the first pipeline and communicates with the first pipeline; the valve plate is arranged in the first pipeline and located between the second end and the third end of the first pipeline. Therefore, by arranging the mixing valve, the waste gas and the air are fully mixed, and the mixing effect of the waste gas and the air is improved. 本申请实施例提供了一种废气混合装置及车辆，其中，该装置包括：混合阀，所述混合阀包括阀板以及相互连通的第一管道和第二管道，所述第一管道的第一端用于输入空气，所述第一管道的第二端用于输出混合气体；所述第二管道的第一端用于输入发动机排出的废气，所述第