Opposite-standing type arc-shaped labyrinth weir structure

The utility model discloses an opposite-standing type arc-shaped labyrinth weir structure which comprises a flood overflow weir and a wing wall, and the flood overflow weir comprises an overflow weir crest and an overflow weir body. The whole overflow weir is smoothly connected and arranged in a plurality of arc shapes, so that the length of an overflow surface is increased, and the designed discharge flow is ensured; the adjacent arc-shaped overflow weirs are oppositely arranged, so that the tops of the overflow weirs are smoothly connected, and the form of an overflow water body is ensured; the wing walls are arranged between the mountain bodies on the two sides and the flood overflow weir. The structure is simple and reliable, the construction difficulty is low, the discharge flow of the narrow mountain is guaranteed only by changing the shape of the overflow weir, the mountain excavation engineering amount and the engineering investment are reduced, and good social benefits and economic benefits are achie