Y-shaped steel plate column-wrapping system

The invention relates to a Y-shaped steel plate column-wrapping system, which comprises a base and a vertical column and an oblique column fixed on the base, wherein inner layers of the base, the vertical column and the oblique column are cement columns, and outer layers are compound steel plate panels; the cement columns are connected with the compound steel plate panels through connecting assemblies; the connecting assemblies include a steel horizontal adjusting substrate, a main steel keel, an arc-shaped auxiliary steel keel and an L-shaped connecting buckle. According to the technical scheme, the steel keel customized by adopting professional die sinking and relevant connecting pieces are adopted, so that the manufacturing quality is ensured, field construction operation is easy and convenient, and the problems of roughness and inaccuracy caused by conventional manual decoration are solved. Moreover, finished steel plates which are environment-friendly, fire-proof, safe, stable, high in quality, attractiv