Contaminated soil in-situ solar thermal desorption remediation system

The invention provides a contaminated soil in-situ solar thermal desorption remediation system, and belongs to the technical field of contaminated soil remediation, the system comprises a support frame, a heat collection pipe, a heat collection cover, a reflector, a gas supply part, a gas injection pipeline and a gas extraction pipeline; the heat collection pipe is rotationally installed on the support frame, and a spiral piece is arranged on the outer side of the heat collection pipe; the heat collection cover is installed on the support frame and arranged on the outer side of the heat collection pipe in a sleeving mode; a waste gas channel for waste gas to pass through is formed between the heat collection pipe and the heat collection cover; and the reflector is used for reflecting sunlight to the heat collection pipe. According to the contaminated soil in-situ solar thermal desorption remediation system, solar energy is used for heating gas, and energy consumption is reduced; when the waste gas generated b