The Fengtai, Fangshan, Tongzhou and Daxing districts are required to close 2,500 enterprises at the end of this year while the whole city will finish the task in 2017.
Structural adjustment in recent years has led to a dramatic fall of heavily polluting and high energy-consuming companies in the Chinese capital.
But small polluting sources such as restaurants, hotels, garages, and bath houses are increasing, an official said.
Beijing aims to basically eliminate coal use in six downtown districts in two years and help 600,000 households shift from coal to clean energy in five years.
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The capital, hit by bouts of heavy smog this winter, plans to reduce coal consumption by 500,000 tonnes in 2016 and close all coal-fired boilers throughout the city by 2020.
Despite Beijing's effort to limit air pollution, its average PM2.5 reading in 2015 stood at 80.6 micrograms per cubic meter, 1.3 times more than the national standard, official data showed.
Beijing witnessed continuous smoggy days this winter, due to highpollutionand unfavourable weather.
The local government issued red alerts, the highest, for heavy airpollutiontwice.
China has a four-tier warning system, with red as the most severe, followed by orange, yellow and blue.
Red alert warrants closure of schools, construction work and implementation of odd and even number plate rule for all vehicles.