High-temperature and high-pressure melt filter

The invention provides a high-temperature and high-pressure melt filter which effectively solves the problems that in the prior art, a filter screen can only be replaced manually, and the amount of labor in the process of replacing the filter screen is large, and the problems that an existing melt filter is high in rejection rate and inconvenient to maintain due to the fact that the filter screen is integrally designed are solved. According to the technical scheme, the melt filter comprises a melt filter main shaft, a channel is formed in the main shaft, a plugging head is arranged at the right end of the channel, dense through holes are formed in the right half part of the channel, a sleeve is arranged on the right half part of the main shaft, dense small holes are formed in the side wall of the sleeve, an annular protrusion is arranged on the outer side of the left end of the sleeve, and a plurality of annular filter plate single pieces are arranged on the outer side of the sleeve in a sleeving mode. A filt