Multi-physical field enhanced oxidative decomposition water purification device and pollution control method thereof

The invention relates to a multi-physical field enhanced oxidative decomposition water purification device and a pollution control method thereof. The device provided by the invention consists of a shell, an outer photocatalyst, an inner photocatalyst, a light source upper support, a light source lower support, a light source, an electromagnetic spiral coil, an aeration head and an aeration head air inlet. The pollution control method comprises the following steps: introducing air or oxygen, and mixing the air or oxygen with sewage through the aeration head to form an aeration-like water flow which enters the outer photocatalyst of the device provided by the invention in a circulating manner to be subjected to direct or indirect electrochemical reaction with light, electricity, magnetism and nano-catalytic materials to remove pollutants in sewage. The multi-physical field enhanced oxidative decomposition water purification device provided by the invention integrates the photocatalysts, electrolytic ionization