Hollow superposed column as well as construction method thereof and concrete column

The invention discloses a hollow superposed column as well as a construction method thereof and a concrete column, and a steel wire gauze is utilized to replace an inner mould in a conventional process. After a prefabricated formwork layer is poured, the steel wire gauze does not need to dismount, so that the step of dismounting the inner mould in a conventional manufacturing process is avoided. The hollow superposed column solves the problems that the inner mould dismounting process is complex and de-moulding is difficult as the inner mould and an outer mould need to arrange in a prefabricating process of a hollow column or a superposed column in the prior art. Difficulty, in design and production processes, of the hollow superposed column is greatly reduced, the construction period is shortened, and engineering cost is reduced. The hollow superposed column can replace a prefabricated column in an assembly type structure, is lighter, reduces the cost, and is simpler in manufacturing process. Besides, the pre