Efficient ectopic vapor extraction system

The invention relates to the technical field of soil vapor extraction, in particular to an efficient ex-situ vapor extraction system which comprises a contaminated soil pile body, the contaminated soil pile body is divided into a plurality of extraction areas, extraction assemblies are arranged on the contaminated soil pile body, and each extraction area is communicated with an air supplementing pipe used for feeding air into the extraction area; the extraction assembly comprises a plurality of extraction pipes and a main pipe communicated with each extraction pipe, the extraction pipes and the extraction areas are arranged in a one-to-one correspondence mode, each extraction pipe is provided with a valve, the main pipe is provided with a first gas concentration detection device used for detecting the concentration of pollution gas in soil, and the main pipe is communicated with a gas extraction device; the main pipe is further connected with a tail gas treatment assembly used for treating pollution gas in so