An apparatus for analyzing technological surfaces is provided. The apparatus has a laser scanner, an electronic control and data processing system and a transport system for setting the scanner and analyzed surfaces in a slow relative motion. The scanner is implemented in a compact form and includes a spinning hollow shaft that carries a laser module and a collector of laser radiation scattered on analyzed surfaces. The collected radiation is transmitted to a photodetector through the bore in the hollow shaft. The design of the scanner enables cost effective characterization of analyzed surfaces with high throughput and precision. The portability of the analyzer allows its integration into production equipment for in-situ product inspection or equipment self-diagnostics.