Automatic water purification system capable of utilizing wastewater

An automatic water purification system capable of utilizing wastewater comprises a raw water port (1), a main water filter (21), a purified water storage device (31), a wastewater storage device (32), a purified water outlet point (41) and a living water outlet point (42), wherein the raw water port (1) is communicated with the living water outlet point (42) through a water supply pipeline (11), the raw water port (1) is communicated with the main water filter (21) through a purified water pipeline (12), the main water filter (21) is located in the wastewater storage device (32), a negative pressure pump (61) is arranged between the main water filter (21) and the purified water storage device (31), the purified water storage device (31) is communicated with the purified water outlet point (41), and a booster pump (62) is arranged between the waste water storage device (32) and the water supply pipeline (11). The automatic water purification system can directly control water filtering operation through the neg