A smoking/hydrogen-suction device detachably accommodates a tubular portable heating-type smoking device main body and makes it possible to perform smoking and hydrogen suction. The smoking/hydrogen-suction device includes: a pair of positive/negative electrodes that are electrically conducted to or cut off from a positive electrode and a negative electrode of a battery by a control substrate; an electrolysis tank which is capable of storing water, into a lower portion of which the pair of positive/negative electrodes are inserted, and which has an injection port for an electrolyte or water and a hydrogen generation port fluidically connected to an air layer in the electrolysis tank; and a smoking device receiving portion having a tubular hole into which the smoking device main body can be inserted from above and having at its bottom portion a terminal that can be electrically connected to a terminal at a lower portion of the smoking device.