Portable Fire Monitor has the advantages of reasonable design, compact structure, low center of gravity, and stable operation. The principle of screw transmission is adopted for horizontal rotation and pitching of the gun head. Portable fire monitor has adjustable flow rate and direct spray function, and can be equipped with a barrel for spraying foam mixture. Portable fire monitors' operation is simple, flexible, reliable, foldable, easy to carry and store, and each part has a positioning pin tightening function when working, so that firefighters can spray at a fixed point and evacuate the fire. It is an ideal mobile fire monitor.