Combined water and soil conservation biobrick

The utility model discloses a combined water and soil conservation biobrick. The slope bricks are laid on a slope layer of the waste residue field through concrete. The horizontal bricks are laid on the horizontal layer of the waste residue field through concrete; concrete layers are arranged at the bottoms of the slope bricks and the horizontal bricks and are poured on the surface of the waste residue field; the concrete layer wraps the surface of the clay layer, and a vegetation layer is arranged on the surface of the clay layer. The vegetation layer is arranged at the top of the clay layer,and the runoff groove is formed in the surface of the clay layer in the length direction of the clay layer. The runoff grooves between every two adjacent slope bricks are communicated, the surfaces of the runoff grooves are coated with concrete, a flow collecting pit is formed in the slope layer of the waste residue field, a flow collecting barrel is arranged in each flow collecting pit, the bottoms of the runoff grooves