Environment-friendly quick-changing sectional tapping channel

The invention relates to an environment-friendly quick-changing sectional tapping channel, which comprises an outer layer and a sectional abrasion-resistant layer, wherein a convex strip is arranged at the outer wall of the sectional abrasion-resistant layer, a groove is formed in the inner wall of the outer layer and is matched with the convex strip, and a high-temperature stripping layer is arranged between the outer layer and the sectional abrasion-resistant layer, and extends between the convex strip and the groove. The environment-friendly quick-changing sectional tapping channel has the advantages that by arranging the sectional abrasion-resistant layer, the damaged part of the abrasion-resistant layer can be conveniently changed; by arranging the mutually embedded convex strip and groove between the outer layer and the sectional abrasion-resistant layer, the tightness of the outer layer and the sectional abrasion-resistant layer is improved, the easiness in loosening and falling is avoided, and the safety of the outer layer is guaranteed; by arranging the high-temperature stripping layer between the outer layer and the sectional abrasion-resistant layer, the abrasion-resistant layer is quickly stripped, and the change is convenient.