Reinforced caterpillar device with large grounding area, feed material level is controlled by contact-type material shot, the material level is controlled by non-contact ultrasonic sensor, and spray control adopts touch screen operation. Standard centralized lubrication system with pulsed spray system allows emulsified asphalt spray and mix paving to be synchronized. The five-section sprayer has compact structure, reasonable arrangement, high spraying precision, good uniformity of horizontal and vertical spraying, and fully meets the requirements of high-grade highway construction. 2200L large-capacity asphalt tank with integrated asphalt pump, spray control handle, emergency heating channel and constant temperature heating device, and has an overhaul access, which can provide a longer continuous construction distance and convenient operation and maintenance. Equipped with electronically controlled diesel sprayer, easy to use.