▎ 摘　　要

NOVELTY - The pipeline has a first level furnace (2) whose top end is connected to a bottom end of a second level furnace (3). A top end of the second level furnace and a bottom end of a smoke exhaust tube (4) are connected by bolts. A mounting block (5) is fixed at a top end of an air suction furnace (1) that is connected with a bottom end of the first level furnace by the bolt. The mounting block is provided between a bottom surface of the first level furnace and a top surface of the second level furnace. USE - Flue gas purifying pipeline for use in steel-making production. ADVANTAGE - The pipeline allows vibrator in a filter device to continuously vibrate to make the impurity in the flue gas to fall into the upper end of the filter block, so that the purifying degree of the gas is excellent, the graphene rod has strong adsorbability, the gas can absorb the smoke without filtering, small impurity, the stability and toughness of the rod is stronger, and does not receive the influence of the smoke impact. The graphene rod functions the bacteria, which can eliminate the bacteria group in the smoke, thus improving the discharged smoke purification degree, and reducing the dust of the past smoke. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a flue gas purifying pipeline for use in steel-making production. Suction furnace (1) First stage furnace (2) Second-stage furnace (3) Smoke exhaust pipe (4) Mounting block (5)