The present invention relates to a composite porous hollow fiber membrane that comprises at least a first and a second layer that contain a fluorine resin polymer. The first layer has a columnar structure that is oriented in the long direction of the composite porous hollow fiber membrane, and the average value ν of the Raman orientation parameters of the columnar structure, as calculated on the basis of a specific formula, is 1.5-4.0. The second layer has a three-dimensional mesh structure, and the surface of the second layer has an average pore diameter of 5.0 nm to 5.0 μm.
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