Device for on-line monitoring of pipeline pollutant concentration

The utility model relates to the technical field of pipeline monitoring devices, and discloses an online pipeline pollutant concentration monitoring device which comprises a connecting pipe, a concentration analyzer is installed on the outer wall of one side of the upper end of the connecting pipe through bolts, a bunching ring is fixed to the outer wall of the middle of the upper end of the connecting pipe, the lower end of the bunching ring is connected with a threading pipe, and the lower end of the threading pipe is connected with a pipeline. And the threading pipe is arranged on the outer wall of the upper end of the connecting pipe in a penetrating mode, the outer wall of the lower end of the threading pipe is connected with a fixing frame, and a cable is arranged in the bunching ring and the threading pipe in a penetrating mode. The device for on-line monitoring of the pipeline pollutant concentration is provided with a top plate, a cable penetrating through a cable bunching ring is clamped and fixed t