The utility model relates to building material crushing equipment. The vertical shaft impact crusher with the multiple shaping functions is simple in structure and reasonable in design. The crusher comprises a crushing chamber and a rotor, a crushing cavity is formed in the crushing chamber; the rotor is rotatably arranged in the crushing cavity through the main shaft; a discharge hole is formed in the bottom of the crushing cavity; a distribution chamber is arranged at the top of the crushing chamber; a material distribution inner barrel is arranged in the material distribution chamber; a material scattering disc is arranged in the center of an opening of the material distribution inner barrel; the side wall of the material distribution inner barrel is heightened; the top of the side wallof the distributing inner barrel is higher than the bulk tray; an outlet in the bottom of the material distribution inner barrel corresponds to an inlet of the rotor; radius increase of rotor, the distance between the outer side wall of the rotor and the inner wall of the crushing cavity is shortened, grinding plates are arranged on the circumference of the rotor and are evenly distributed, rotorthrowing openings are reserved between the grinding plates, the ratio of the side surface area of each grinding plate to the rotation surface area of the rotor is 4-7: 10, the impact probability of counterattack materials and the rotor is increased, and shaping of material edges and corners is improved.