Vertical supporting device for high and large formwork of structural column

The utility model discloses a structural column high and large formwork vertical supporting device which comprises an outer formwork and an inner formwork which are coaxially arranged, the outer formwork and the inner formwork are connected through a pull rod, and a bin position to be poured is formed between the outer formwork and the inner formwork. A plurality of sets of supporting assemblies for supporting an outer formwork are installed on the poured concrete foundation column, the multiple sets of supporting assemblies are arranged around the poured concrete foundation column at equal intervals, and the bottom of each set of supporting assembly is fixedly installed on the poured concrete foundation column through an embedded part. The top of the outer formwork is fixedly connected with the bottom of the outer formwork through a jacking device, and the outer formwork can ascend and descend relative to the poured concrete foundation column through the jacking device. The vertical supporting device for the