A rotary lawnmower includes a shutter for switching a location to which grass cut by the blade is to be discharged, and a shutter operating mechanism for operating the shutter. The shutter operating mechanism has a first shaft, a second shaft, a first link arm, and a second link arm, a third link arm, and an operating lever. The first shaft is positioned on the housing. The first link arm is capable of swinging about the first shaft and has the operating lever. The second shaft is positioned adjacent to and parallel to the first shaft, is rotatably attached to the housing, and is linked to the shutter via the third link arm. The second link arm is attached to the second shaft in such a manner as to be restricted in relative rotation but capable of swinging about the second shaft, and is swing-driven by the first link arm.