Transverse oxygen content detecting device of burnt gas in coke oven

The utility model relates to a transverse oxygen content detecting device of burnt gas in a coke oven, comprising a plurality of sampling pipes and an electromagnetic valve of the sampling pipes as well as a vacuum main pipe, a three-way pipe, a zirconia oxygen content analyzer, a vacuum generator, a compression air electromagnetic valve and an industrial controller; one end of each sampling tube is respectively communicated with a temperature-detecting hole of a small flue of each air regenerator, and the other end thereof is respectively connected with the vacuum main pipe by the electromagnetic valve of the sampling pipes; the vacuum main pipe is connected with one end of the three-way pipe, the other two ends of the three-way pipe are respectively connected with a zirconia probe of the zirconia oxygen content analyzer and a vacuum port of the vacuum generator; and a gas source pipe of a gas source port of the vacuum generator is provided with the compression air electromagnetic valve. The device can detec