The utility model discloses a novel wet process leaches material heat transfer system. Novel wet process leaches material heat transfer system includes: the heat exchanger, the heat exchanger includes: the casing has the chamber of holding in, part the flitch on the left side and part the flitch on the right side, part the flitch on the left side and part the flitch on the right side and turn up the soil to establish and holding the intracavity in the orientation interval about along, be equipped with coolant import and export on the wall in heat transfer chamber, be equipped with the feed inlet on the wall of left cavity, be equipped with the discharge gate on the wall of left cavity or right cavity, with a plurality of heat exchange tubes, a plurality of heat exchange tubes are established at the heat transfer intracavity, and the left end of a plurality of heat exchange tubes links to each other with a plurality of left through -holes and the right -hand member links to each other with a plurality of right through -holes, and the pressure leaching cauldron, the ore pulp export of leaching of pressure leaching cauldron communicates with the feed inlet. According to the utility model discloses novel wet process leaches material heat transfer system can be effectively, leach the ore pulp to this for a long time cools off, advantage such as have that the cooling effect is good, long service life, stable, the easy control of the ejection of compact, vibration are little.