Wastewater treatment nanofiltration device

The invention relates to the technical field of wastewater purification, and discloses a wastewater treatment nanofiltration device, which comprises a support frame and a water pump arranged on the support frame, wherein a plurality of mounting grooves arranged in an annular array shape are formed in the support frame, filtering cores for purifying wastewater are mounted in the mounting grooves, one ends of the filtering cores are connected in pairs through first connecting pipes, and one end, far away from the first connecting pipe, of one filtering core is communicated with a water pump through a pipeline and is connected with an external water source. During the use, the mounting frame can be driven to move through a driving assembly in a control member to further control the connectionbetween the filtering core and a third connecting pipe and the connection between the filtering core and a second connecting pipe, so that a user can conveniently control the wastewater purificationdegree according to the wastewater recycling purpose, and the problem that the wastewater purification degree far exceeds the use requirement to cause unnecessary loss of the filtering core at the rear position can be effectively avoided.