The invention relates to a comprehensive environment-friendly 
processing system of a modified 
asphalt production department, and is composed of a dust treating column, a smell treating box, a gas 
pipe line and a draught fan arranged between the dust treating column and the smell treating box. The dust treating column is internally provided with scouring water having the function of separating the dust and 
waste oil, the bottom is provided with a blowdown valve, a water tank which is self-provided with a circulatory 
rotational flow cleaning device, a dust board having the functions of filtering and stopping the dust running upwards and a PVC ball 
filter material box having the function of absorbing oil 
stain; the smell treating box is provided with a oil filtering 
barrel having the function of further filtering the oil 
stain and an 
activated carbon odour removal device having the function of absorbing oil 
stain. When in work, the dust is separated in the dust treating column, and the 
waste oil is thoroughly separated from the 
mixed gas by the multilevel 
processing of washing, absorbing and filtering; the processed clean gas is carried out early smell removing treatment, thereby realizing comprehensive treatment with high quality in one environment-friendly 
processing system and recycling the processed 
solid state waste according to the classification; the environment-friendly processing 
system can be conveniently utilized, as well as has reliable work, reasonable structure and better practicability.