The invention discloses a fluid type gas blaster. The fluid type gas blaster comprises an inner tube, an inner tube filling cavity, an inner tube air inflation ignition head, an outer tube air inflation head, and an outer tube, wherein the inner tube filling cavity is formed in the inner tube, the two ends of the inner tube are connected to a first sealing inner cover and a second sealing inner cover respectively in a sealed mode, the outer layer of the inner tube is the outer tube, a first sealing outer cover and a second sealing outer cover are connected between the inner tube and the outer tube in a sealed mode, a sealing cavity formed by the inner tube, the outer tube, the first sealing outer cover, and the second sealing outer cover is an outer tube filling cavity, the outer tube filling cavity is filled with liquid carbon dioxide or liquid nitrogen, the inner tube filling cavity comprises a first inner cavity and a second inner cavity, the first inner cavity and the second inner cavity are separated through a thermoplastic sheet in a sealed mode, and the first inner cavity and the second inner cavity are filled with supercritical oxygen and liquid carbonaceous organic matter respectively. The fluid type gas blaster has the advantages of being low in manufacturing cost, high in reaction material mixing uniformity, high in heat releasing efficiency, good in transportation safety and large in blasting power.