The invention discloses a magnet generator, and a solid particle adsorption device and an air sterilization machine manufactured through the same, belongs to the technical field of air purifiers, and is creative. The magnet generator comprises seven layers, and flat high voltage direct current is introduced to the third layer and the fifth layer. The magnet generator can be called a full-material magnet generator. The solid particle adsorption device and the various air sterilization machines manufactured through the magnet generator are high in air purification efficiency and large in space, have the killing capacity for staphylococcus albus, natural bacteria in air, escherichia coli, staphylococcus aureus, candida albicans, serratia marcescens and the like in the air, can generate the hundred-million-level negative oxygen ion concentration, and can be widely applied to a sterile laboratory, a hospital, an operating room, a meeting room, a nursing home, a school, a factory workshop and the like. The work efficiency is greatly improved, and the profits are improved. Generated negative oxygen ions enable solid fine particles in the air to be electrified, adsorption with the magnet generator is facilitated, and a circle is formed. The magnet generator, and the solid particle adsorption device and the air sterilization machine manufactured through the same have wide market prospects.