Provided is a general-purpose engine having a sufficient cooling function. A general-purpose engine 1 is provided with an engine body 10 having an exhaust system part 13 connected to a cylinder 11, and also with a cooling mechanism 9 for cooling the engine body 10. The cooling mechanism 9 is provided with a cooling fan 90 which rotates to generate a cooling air flow, a discharge section 92 which discharges the cooling air flow generated by the rotation of the cooling fan 90, and a cooling air flow opening 33 which is disposed in the upper part of a partition 32 for separating a cylinder chamber 30 having the cylinder 11 provided therein from a muffler chamber 31 having a canister muffler 132 provided therein, connects the cylinder head 15 side of the cylinder chamber 30 and the upper side of the muffler chamber 31, and causes a cooling air flow to flow from the cylinder head 15 side of the cylinder chamber 30 to the muffler chamber 31.本發明提供一種具有充分之冷卻功能之汎用引擎。本發明之汎用引擎1係具備具有連接於缸體11之排氣系統零件13之引擎本體10、及冷卻引擎本體10之冷卻機構9者，冷卻機構9具備：冷卻風扇90，其藉由旋轉而產生冷卻風；吹出部92，其吹出藉由冷卻風扇90旋轉而產生之冷卻風；及冷卻風流通開口部33，其配設於隔開設置缸體11之缸體室30與設置罐式消音器132之消音器室31之隔件32之上部，並使缸體室30之缸蓋15側與消音器室31之上方側連通，而使冷卻風自缸體室30之缸蓋15側流通至消音器室31。
