Junked tire protective surface combined steel-structure check dam

The utility model provides a junked tire protective surface combined steel-structure check dam. The junked tire protective surface combined steel-structure check dam comprises a blocking net, junked tires, an anchor rod, a framework, an auxiliary framework and a panel, wherein the panel is connected to the framework and the auxiliary framework; the framework and the auxiliary framework compose a truss structure and form a trapezoid together with ditch bank lines; and an spillway port with a certain width is arranged at the upper end of the panel. Under the impact of the debris flow, the blocking net is firstly used as a first-level blocking protective measure, and the support structure of the blocking net is composed of ropes at four sides of the blocking net and the junked tires; the junked tires can avoid large-scale dimension stones directly impacting the panel and have the cushion protection function; and the panel, the framework and the auxiliary framework compose a continuously steady rigid structure to serve as a support system of the whole check dam and function on blocking water and sands.