The wet-type fine particle permanent magnetic roll separator is mainly used for the roughing, scavenging and concentrating separation of fine-grained weakly-magnetic ore, which can effectively perform the separation of manganese ore, hematite, goethite,limonite, siderite, chromite, niobium-tantalite iron ore, titanium-cerium iron ore, wolframite, itabirite, apatite, xenotime, olivine, sulfur-copper-germanium ore, ankerite, biotite, epidote ,serpentine abd non-metallic ore.