Double-layer canopy

The utility model provides a double-layer canopy, which relates to the technical field of building construction.The double-layer canopy comprises an outer canopy and an inner canopy, the inner canopy is located on the inner side of the outer canopy, the outer canopy comprises a first canopy frame and a first canopy roof, and the first canopy roof is connected to the top of the first canopy frame; the inner shed comprises a second shed frame and a second shed roof, and the second shed roof is connected to the top of the first shed frame; the second shed frame can stretch out and draw back in the length direction of the first shed frame, and the second shed roof can be folded; the light transmittance of the first greenhouse roof is larger than that of the second greenhouse roof. 本实用新型提供了一种双层雨棚，涉及建筑施工的技术领域，双层雨棚，包括：外棚和内棚，所述内棚位于所述外棚的内侧，所述外棚包括第一棚架和第一棚顶，所述第一棚顶连接在所述第一棚架的顶部；所述内棚包括第二棚架和第二棚顶，所述第二棚顶连接在所述第一棚架的顶部；所述第二棚架能够沿所述第一棚架的长度方向伸缩，所述第二棚顶可折叠；所述第一棚顶的透光率大于所述第二棚顶的透光率。