Large-span multi-directional connecting piece for steel support

The utility model discloses a large-span multi-directional connecting piece for a steel support. The large-span multi-directional connecting piece comprises a steel barrel, connectors and rod parts, wherein the connectors are arc-shaped; the middle of each connector is welded with each rod part; at least three radially distributed first bolt holes are formed in each of two sides of the connector respectively; at least one set of second bolt holes corresponding to the first bolt holes are formed in the periphery of the steel barrel; the periphery of the steel barrel is at least vertically connected with one connector through a bolt; a stand column is sleeved with the steel barrel. The large-span multi-directional connecting piece can realize multi-directional and multi-angle adjustment of distances and heights of the rod parts and is standardized in size, so that the parts can be interchanged and universally used, the connecting piece can be applied to large-span deep foundation pits and irregular deep foundation pits in urban areas, a process technology is improved, and foundation pit support construction is simpler and quick.