A movable irrigation machine contains a machine body including plural wheels a heating system including a supporting frame and plurality heat devices a gas cylinder to supply gas toward the heat devices. Each heat device has an inlet for flowing water inwardly, an outlet for flowing heated water outwardly, and a gas intake for feeding gas into the each heat device a first heat device on a right side of the heat devices has an inflow tube connected with an inlet of the first heat device a second heat device on a left side of the heat devices has an outflow tube coupled with an outlet of the second heat device the first heat device has a connecting pipe coupled with the outlet thereof and an inlet of a third heat device on a middle portion of the heat devices, and the third heat device has an outlet.
