Irregular stiff column cross construction device

The utility model discloses an irregular stiff column cross construction device, which belongs to the technical field of stiff column construction and comprises two V-shaped mold grooves, the V-shaped mold grooves are symmetrically arranged, a plurality of second limiting grooves are formed in the bottom ends of the inner sides of the V-shaped mold grooves, and a plurality of first limiting grooves are formed in the top ends of the inner sides of the V-shaped mold grooves. Water-soluble paper adheres to the inner side face of the V-shaped mold groove through an adhesive, a connecting shaft sleeve is fixedly connected to the bottom end of the outer side of the V-shaped mold groove, supporting legs are fixedly connected to the bottom end of the connecting shaft sleeve, and trundles are installed at the bottom ends of the supporting legs. A pair of symmetrical V-shaped mold grooves is arranged, so that a shaping effect can be achieved on construction of a V-shaped stiff column, a first limiting groove and a seco