Rock slope greening, rain collecting and water storing irrigation system

The invention discloses a rock slope greening, rain collecting and water storing irrigation system. The rock slope greening, rain collecting and water storing irrigation system comprises a slope body,wherein a plurality of rows of planting platforms are arranged on the slope body; each planting platform is provided with planting ditches, and the inner edge of each planting platform is provided with a plurality of planting holes which are perpendicular to the slope body; a rain collecting pool is arranged at the top of the slope body, and an automatic irrigation device installation cavity is formed in the top of the slope body; an outer sleeve is installed in the automatic irrigation device installation cavity, and an adjusting hole and an irrigation hole are vertically formed in the outersleeve in a penetrating manner; a middle adjusting shaft is rotatably connected to the inside of the outer sleeve, and an adjusting channel and an irrigation channel are vertically formed in the middle adjusting shaft in a pe