Efficient plate-fin heat exchanger for agricultural machinery

The utility model relates to the technical field of plate-fin heat exchangers, in particular to an efficient plate-fin heat exchanger for agricultural machinery, which comprises a plurality of first heat exchange modules and second heat exchange modules and further comprises a support frame, and the first heat exchange modules and the second heat exchange modules are fixed inside the support frame at intervals from top to bottom. A liquid inlet cavity and a liquid outlet cavity are formed in the two sides of the supporting frame correspondingly, the first heat exchange module and the second heat exchange module both comprise fixing frames fixed in the supporting frame and fins detachably installed in the fixing frames, and through holes allowing the fins to be inserted therein are formed in the two ends of the first heat exchange module and the two ends of the second heat exchange module in a penetrating mode correspondingly; the through holes in the two ends of the first heat exchange module communicate with