Personalized air supply system for business district

The invention provides a personalized air supply system for a business district; the system comprises a main air supply duct and a branch air supply duct, the main air supply duct and the branch air supply duct penetrate through a passing table area from the end of a passenger room to enter a business district, the main air supply duct is divided into a first air cavity and a second air cavity at the end of the passenger room, and the first air cavity is directly communicated with the main air supply duct. The lower part of the first air cavity is provided with a roof air supply outlet in the business district; an air supply unit is installed between the second air cavity and the main air supply duct, the air supply unit comprises a fan for driving the air volume and pressurizing the air volume, the second air cavity is provided with a second air cavity branch in the business district, and the second air cavity branch is provided with an adjustable air outlet beside the business seat; the branch air supply du