The utility model relates to the field of
fireworks, and discloses a high-thrust firework which comprises a launching cylinder, sealing paper is fixedly connected to the top end of the inner wall of the launching cylinder, an ignition
assembly is arranged on the upper portion of the sealing paper, and a launching
assembly is arranged in the launching cylinder. The launching
assembly comprises an effect inner cylinder, the effect inner cylinder is pressed at the bottom end of the inner wall of the launching cylinder, a blocking
paper sheet is fixedly connected to the middle section of the inner wall of the effect inner cylinder, and a cavity is formed in the inner wall of the effect inner cylinder; the portion, located above the blocking paper piece, in the effect inner cylinder is sequentially filled with
propellant powder, clay knots and acousto-optic
powder from bottom to top. According to the utility model, the
propellant powder is filled in the lengthened effect inner cylinder, so that the thrust transmission path is shortened, the
energy loss caused by a gap between the launching cylinder and the effect inner cylinder is reduced, and under the condition of the same
propellant powder amount, larger upward thrust can be generated, and the firework launching height can be increased.