Abstract: The horizontal vibrational-discharge centrifuge and vertical scraper-discharge centrifuge are currently the main dewatering equipment used in China′s coal preparation plants, and each type has its distinctive features. Following a description of the structural design, working principle and technical features of each version, a comparative analysis is made of the similarities and differences of the two kinds of centrifuges, in an attempt to provide a reference for the optimal selection of dewatering centrifuge.