Flue water retaining ridge mold

The utility model relates to the technical field of building construction, in particular to a flue water retaining ridge mold. A flue water retaining ridge mold comprises a high mold and a low mold which are fixedly connected to form a flue opening shape, and further comprises an outer mold which is located on the outer side of the high mold, each of the high mold, the low mold and the outer mold comprises an L-shaped steel plate and at least one movable steel plate, and steel mold water stopping heads are arranged at the two ends of the outer mold. One end of the steel mold water stop head is connected to the outer mold through a bolt, the other end of the steel mold water stop head is movably connected to a connecting groove formed in the high mold through a bolt, and the position of the steel mold water stop head exceeds the outer side face of the low mold; the section of the steel die water stop head is in the shape of a tooth-shaped bending line. The movable steel plate capable of being pulled and insert