Special-shaped quadrangular stone column

The invention relates to a special-shaped quadrangular stone column. The column comprises an original column, a base steel truss, a connecting part and a decorative layer. The base steel truss is fixed on the original column. The connecting part is arranged on the base steel truss. The decorative layer is connected with the connecting part and comprises a stone surface layer, an adhering layer and an FRP light-weight ceramic complex. The stone surface layer is arranged on the surface of the FRP light-weight ceramic complex through the adhering layer. The special-shaped quadrangular stone column has following beneficial effects: installation efficiency of super-large quadrangular stone columns is increased; a base framework of a super-large quadrangular stone column is firm; gaps between stone plate blocks are smooth and connected naturally; deformation due to heavy weight of stone plate blocks or weight of the base framework is avoided; deformation due to duration or stress is avoided; back machining is carri