The utility model discloses a novel air pipe mounting connecting structure. The novel air pipe mounting connecting structure comprises two adjacent rectangular air pipes, each air pipe comprises an upper plate, a bottom plate and two side plates, top sides and bottom sides of the two side plates are glued to the upper plate and the bottom plate through chloroprene rubber binder respectively, four reinforcing bars are fixed in the air pipes, the bottom end of a zinc-plated screw penetrates the upper plate from top to bottom to be in screw joint with a nut, the top end of the zinc-plated screw is fixed on wall surfaces above the air pipes, the air pipes are placed on a hanging bracket, end faces of the two adjacent rectangular air pipes are fixedly glued together through the chloroprene rubber binder, and four connecting bars are fixedly glued to four side walls at glued positions of the two adjacent rectangular air pipes respectively. The adjacent air pipes are glued together through the binder so that gaps at connecting positions of the two air pipes are avoided, air can not be leaked during circulation, gluing effects of the two air pipes can be further improved by the connecting bars, the air pipes are subjected to double supporting by the zinc-plated screw and the hanging bracket, and the safety is improved.