Abstract: The Ordovician in Tahe oilfield belongs to the high viscosity and high condensed heavy oil reservoir. In the process of gathering and transportation, the water jacket furnace has become one of the important equipment of single well, process and station. Carbon deposition in furnace and flue seriously affects heavy oil gathering and transportation. At present, the traditional way to clean flue and chimney is manual cleaning, which demands a large workload and is difficult to clean U-type pipeline. We developed a flue blowing device for water jacket furnace suitable for the Tahe oilfield. The equipment is equipped with a scraper that matches the diameter of the flue, and can bend with free radian for the U-type pipeline. Scraped carbon deposits can be blown out in time with the blowing device. Field applications indicated that the new device significantly reduced cleaning time, saved manpower and material resources, achieved a good cleaning effect, and showed a high promotion value.