The utility model discloses a jacketed heat pipe, which solves the problems that utilization temperature range of an existing jacketed heat pipe is limited due to pure water adopted as a working medium, and the existing jacketed heat pipe can only be horizontally mounted. The jacketed heat pipe is characterized in that inorganic heat transfer media are arranged inside an annular space formed between the outer surface of an inner pipe (1) and the inner surface of an outer pipe (2), and the inorganic heat transfer media comprise an anti-corrosion layer (5), an active layer (6) and heat conducting medium powder (7). The anti-corrosion layer and the active layer are respectively and sequentially arranged from the outer surface of the inner pipe to the inner surface of the outer pipe, and the heat conducting medium powder is arranged inside an annular space formed by the outer surface of the active layer on the inner pipe and the inner surface of the active layer on the outer pipe. The jacketed heat pipe can be used in heat exchanging equipment or heat recovery equipment in petroleum industry, chemical industry, chemical fertilizer industry, electric power industry and the like, and is particularly suitable for an industrial furnace high-temperature fume gas energy recycle device.