Adjustable schoolbag with rain cover

The utility model relates to an adjustable schoolbag with a rain cover, which comprises a schoolbag body and schoolbag belts. The schoolbag body is a hollow bag body. The central part of the surface far away from the human body is inward concaved. The inward concave surface is externally and fixedly connected with an elastic bag body. The internal part of the elastic bag body is hollowed and a zipper is arranged at the external part of the elastic bag body. The bottom side of the inner wall of the elastic bag body is connected with two pieces transparent plastic cloth which are of cuboidal structure. A plurality of snap fasteners are arranged at the two ends of each piece cloth. A hard arc-shaped baffle is arranged at the front end of the upper plastic cloth. Each schoolbag belt is of two-section structure. Snap fasteners are arranged on the surface of the schoolbag belts. In rainy days, people can take out the two plastic pieces cloth in the elastic bag body. The head can be covered by using the hard arc-sha