Greenhouse water and fertilizer integrated irrigation device based on rainwater collection

The invention provides a greenhouse water and fertilizer integrated irrigation device based on rainwater collection, and belongs to the technical field of greenhouse planting. The problems that existing greenhouse planting needs high humidity and land fertility and the like are solved. The greenhouse water and fertilizer integrated irrigation device based on rainwater collection comprises a collection box, a stirring barrel and a feeding device, extension boxes are arranged on the two sides of the collection box, the extension boxes are used for guiding rainwater to the collection box, and the extension boxes are rotationally connected with the collection box; a driving device for driving the extension box to rotate and a rainwater detector for detecting whether it rains or not are arranged on the collecting box, the collecting box is connected with the stirring box through a water pipe, the stirring barrel is used for stirring fertilizer and water, the feeding device is used for conveying the fertilizer into