An all-round ultrahigh-toxicity micro-emission energy-saving waste gas and liquid purifying pulse engine master device comprises a burning chamber, a tail pipe, a fuel inputter, a gas inlet pipe, a gas discharge pipe, a mixer, a feed valve, a gas inlet valve and a silencer. A waste gas and tail gas preheating porous medium heat accumulation pipe, a high-temperature porous medium heat accumulator, a heat energy utilization surface, the gas discharge pipe, an ultrahigh-toxicity waste gas and tail gas input pipe and a low-heat-value waste gas and tail gas pressurizer are arranged on a tail spraying pipe, and a high-temperature preheating burning chamber and a high-temperature steady burning burner are arranged on a high-temperature pulse burning chamber. A fresh oxygen-rich air input pipe, a high-temperature waste gas and tail gas and fresh oxygen-rich air input mixer, the high-temperature preheating burning chamber, the high-temperature steady burning burner, a high-temperature on-duty high-flame generator, a thin high-temperature high-energy fuel reheating pipe, a high-temperature high-energy fuel pulse ejector, a thin high-temperature waste liquid water and accelerant reheating pipe and a high-temperature waste liquid water and accelerant pulse ejector are arranged on the high-temperature pulse burning chamber. The all-round ultrahigh-toxicity micro-emission energy-saving waste gas and liquid purifying pulse engine master device is used in the field of waste gas and liquid purification.