Five-stage water purification system for easy grading getting of water, and water getting method thereof

The invention belongs to the technical field of water purification apparatuses, and concretely relates to a five-stage water purification system for easy grading getting of water. The system comprisesa water inlet pipe, a first water purifying device, a second water purifying device, a third water purifying device, a fourth water purifying device, a fifth water purifying device, a water outlet pipe and a plurality of tee devices, the first water purifying device, the second water purifying device, the third water purifying device, the fourth water purifying device and the fifth water purifying device are sequentially connected in series through the different tee devices, the water inlet pipe is communicated with the first water purifying device, the water outlet pipe is communicated withthe fifth water purifying device, every tee device comprises a tee tube and a sampling tube, and the sampling pipe is communicated with the tee tube. The system realizes five-stage purification treatment of tap water, fully ut