This equipment is aimed at purifying and recovering organic waste gas with higher concentration in industries such as medicine, chemical industry, pesticide, electronics, tanning, tape, coating, etc. It uses granular activated carbon with excellent adsorption and desorption performance of organic substances as the adsorption material. This equipment has a wide application range. Full-automatic operation, without the need for full-time operators, the device has a compact structure, low energy consumption, high quality and high efficiency in recovering organic matter in the exhaust gas, significant environmental and economic benefits, and a short payback period.