Novel producing layer gas ground metering device

The utility model provides a novel producing layer gas ground metering device, which relates to the technical field of producing layer gas metering and comprises a conveying pipeline, a fourth pipeline and a valve body arranged on the conveying pipeline, the conveying pipeline comprises an input pipe, a second pipeline and a third pipeline, a first pipeline is arranged on the end face of the input pipe, and a second pipeline is arranged on the end face of the third pipeline. The valve bodies are arranged between the first pipeline and the second pipeline and between the second pipeline and the third pipeline, the fourth pipeline is arranged between the second pipeline and the third pipeline, and a first flange and a second flange are arranged on the end face of the input pipe and the end face of the first pipeline. The main control valve body controls opening and closing of the conveying pipeline, the sub-control valve bodies are used for partial closing and do not affect the conveying task of the conveying p