Intelligent negative-pressure air disinfection chemical treatment unit and control method

The invention discloses an intelligent negative-pressure air disinfection chemical treatment unit and a control method. The treatment unit comprises a case shell, a multiple purification module, a sterilization module, a fan module and a control module are sequentially arranged in the case shell, an air inlet is formed in the side face opposite to one side of the multiple purification module, and the sterilization module is arranged on the other side of the multiple purification module. The sterilization module and the fan module are respectively connected with the control module, the control module is also provided with a signal interface connected with an external air pressure detection sensor, and the side surface opposite to an air outlet of the fan module is provided with an air outlet for harmless emission. The intelligent negative-pressure air disinfection chemical treatment unit and the control method have the advantages that viruses and bacteria are physically filtered and isolated through the arrang