The invention relates to a clean-type hot-
treatment system for collecting and exhausting oil fume, which is characterized by comprising an oil fume inlet 
pipe (1), a temperature cooler (2) with heat exchange, an oil fume purifier (3), an exhaust fan (4) and a controller (5); the air outlet of the oil fume inlet 
pipe (1) is connected with the air inlet of the temperature cooler (2) with heat exchange; the air outlet of the temperature cooler (2) with heat exchange is connected with the air inlet of the oil fume purifier (3), and the air outlet of the oil fume purifier (3) is connected with the air inlet of the exhaust fan (4); the 
signal output end of the controller (5) is connected with the 
control signal input ends of both the oil fume purifier(3) and the exhaust fan (4); the 
signal input end of the controller (5) is connected with the 
signal output end of a temperature 
detector which is connected in the oil fume purifier (3). The heat of the oil fume is utilized by the invention, which is beneficial to save energy. The 
system of the invention has the advantages of wide application range, high working efficiency, high efficiency of dust collection and saving energy, which is especially applicable to the collection of oil fume particles that are smaller in particle 
diameter and lighter in weight.