Split-type elbow mold

The invention provides a split-type elbow mold which comprises an elbow mold body and rotating supporting rods, wherein the elbow mold body comprises an outer-piece mold, two inner-piece molds and two sectional elbow molds, wherein the sectional elbow molds are positioned at the two ends of the mold body; the arc surface of the outer-piece mold is connected with the outer side faces of the sectional elbow molds to form an outer side wall of the mold body, and the two inner-piece molds are symmetrically arranged; the arc surfaces of the inner-piece molds are connected with the inner side faces of the sectional elbow molds to form an inner side wall of the mold body; the outer-piece mold, the inner-piece molds and the sectional elbow molds are connected by concave and convex positioning modules, and the rotating supporting rods are respectively and fixedly arranged at the two ends of the elbow mold body and positioned on an extension line of a rotating central line of the elbow mold body. The split-type elbow m