Multi-module combined type folding bookcase

The utility model discloses a multi-module combined type folding bookcase. The multi-module combined type folding bookcase is improved on the basis of an existing bookcase structure. The upper portion of the bookcase is a removable bookshelf, namely the upper position and lower position of the bookshelf can be adjusted to facilitate using habits of a user, the number of the bookshelf can be increased according to the height of the bookcase to increase the quantity of stored books, and the bookshelf can also be removed to serve as an independent bookend in use. The lower portion of the bookcase is a desktop. The rotary type desktop is adopted, so on one hand, the angle of a desk can be adjusted to adapt to be suitable for being used by a learner, and on the other hand, the desktop can be rotatably put down when not used, and occupied space is reduced. In addition, space is reserved at the bottom end of the bookcase, so the space is convenient for the learner to use. Because of the whole design, the range of ap