The invention provides a vertical combined crushing and grinding machine. The vertical combined crushing and grinding machine comprises an integral support, a grinding cavity seat, a cylinder body, a vertical rotor body, a spiral impact plate, a discharge hopper, charge hoppers, a turnover door, a grinding cavity wall lining plate, an electromotor, a crushing mechanism and a grinding mechanism. The vertical combined crushing and grinding machine enables the material crushing and grinding processes to be realized by one machine, is compact in structure and small in occupied area, saves the process, and improves the efficiency. Materials are impacted and crushed at high speed by a hammer head on a tower-shaped hammer seat in a spiral through crushing cavity, are thrown to the turnover door, are rebounded to the hammer head on the tower-shaped hammer seat, and are crushed repeatedly in the way, so as to guarantee relatively sufficient crushing. A centrifugal rotation roller acts on a grinding cavity wall lining plate, the materials are ground and crushed to 1mm below, and the qualified materials discharged from the discharge hopper finally are uniform in granularity and high in crushing ratio. In addition, the crushing and grinding cavity of the through combined crushing and grinding machine of the design is difficult to block, is smooth in material discharge and is long in service life, and the industrial cost is reduced.