The invention discloses a tower-shaped distributing system comprising a main frame and a feeding conveyor. A main distributing roll is connected to the center of the top of the main frame through a bearing fixing seat, and is driven by a main power device in transmission connection with the main distributing roll. A first distributing conveyor and a second distributing conveyor both connected to the main frame are arranged below two sides of the main distributing roll. Secondary distributing devices are arranged on two sides of the main frame. Each secondary distributing device comprises a distributing frame. Oblique slide carriages are connected with two sides of each distributing frame. Auxiliary distributing rolls are connected with the centers of the tops of the distributing frames through bearing fixing seats. Inclination angles of the slide carriages are larger than or equal to repose angles of materials to be conveyed and distributed, so that the materials can automatically flow downwards along the slide carriages smoothly under the action of their own gravity; through adjustment of rotating speed and rotating direction of a power device, the quantity of materials divided to two sides can be adjusted; by retaining plates, ejection of the materials during working can be prevented.