Multifunctional blackboard used for teaching

The invention discloses a multifunctional blackboard used for teaching. The blackboard is simple in structure, low in manufacturing cost and high in practicability. The blackboard comprises a front board surface. The back surface of the front board surface is a back board surface. A framework is arranged on an outer frame of the front board surface. Supporting frames are arranged on one side of the front board surface. One side of each supporting frame is connected with a rotating wheel. One side of each rotating wheel is connected with a rail, and the other side of each rotating wheel is connected with a connecting rod. One side of each rail is connected with a pulley, one side of each pulley is connected with a connecting block, a buckle is arranged at one side of each connecting block, a supporting rod is arranged at the lower end of each pulley, one end of each supporting rod is connected with a base, and one side of each base is connected with movable wheels. According to the multifunctional blackboard u