The invention provides an integrated beta-ray smoke concentration direct reading monitoring device which comprises a sampling head and a main chassis, wherein a collecting weighting unit and a metering unit are arranged in the main chassis; the sampling head is connected with the main chassis through a heat tracing hose; the collecting weighting unit comprises a sampling branch connected with the sampling head through a pipeline, a sampling pump, a drying branch for blowing cleaning gas, a beta-ray detecting module and a rotatable turntable; a filter film clamp mounting hole is formed on the turntable; and the metering unit comprises a gas circuit flow unit and a single chip for receiving the detecting signals of the sampling head and the collecting weighting unit and calculating a concentration value. The direct reading monitoring device integrates the fetching of filter film clamp, sample collection, drying device and weighting unit through the turntable, has a compact structure and is high in portability, wherein the filter film drying is performed in the manner of simultaneously heating and airing and the drying efficiency is high; a quick hoisting mechanism is adopted for realizing the quick sealing and loosening of the gas circuit of the sampling branch and the drying branch; and the direct reading monitoring device is equipped with a back flushing device for cleaning the sampling pipeline and is capable of increasing the sampling precision.