Safe gas supply device having environmental protection property and used for chemical equipment

Provided is a safe gas supply device having environmental protection property and used for chemical equipment. An argon vaporizer is fixed on one side of an argon liquid storage tank through a seal structure and is connected in series with the argon liquid storage tank through a pipeline; an intelligent gas safety matching cabinet communicates with the argon vaporizer and an electric heating waterbath vaporizer; the side wall of a tank body is of a hollow structure, and the interior is filled with insulating cotton; a gas intake pipe is detachably provided with a gas inlet filter assembly, and a gas outlet pipe is internally detachably provided with a gas outlet filter assembly; the seal structure includes a first casing pipe fixedly connected to a first valve and a second casing pipe fixedly connected to a second valve, and the first casing pipe and the second casing pipe are made of PFA and PTFE respectively; the outer side wall of the pipeline is sleeved with a plurality of tight hoops along the length dir