Novel hollow nanofiltration membrane assembly

The utility model relates to the field of filter membrane components, and discloses a novel hollow nanofiltration membrane component which comprises a main body, a filter cavity is formed in the main body, a quartz gravel filter cartridge is fixedly connected to the middle of the interior of the rear end of the filter cavity, and a fastening block is fixedly connected to the inner wall of the front end of the quartz gravel filter cartridge. A silica sand filter cartridge is fixedly connected to one side, far away from the center of the quartz gravel filter cartridge, of the inner wall of the rear end of the filter cavity, and a ceramic particle filter cartridge is fixedly connected to one side, far away from the center of the main body, of the inner wall of the rear end of the filter cavity. According to the utility model, the quartz gravel filter cartridge in the main body can be used for effectively removing larger-particle suspended solids, silt and part of organic matters, the silica sand filter cartridge