Multi-blade tool of vertical lathe

The utility model relates to a multi-blade tool of a vertical lathe. The tool comprises a tool rest and a tool bar fixedly connected onto the tool rest, wherein blades are welded or fixed through fasteners at the end of the tool bar. The tool is characterized in that the blades comprise a lathe top surface blade, a lathe bottom surface blade and a lathe inner hole blade which are installed at the end of the tool bar at feature angles by aid of screws respectively. Compared with the existing single-blade tools, the multi-blade tool has the advantages that the blades are not needed to replace, machining is continuously completed once, the labor time is saved, the labor intensity is reduced, the machining efficiency is improved; and a plurality of blades are combined on one tool bar, so that the tool is compact in structure and convenient to operate.