The Liverpool striker scored twice in three minutes shortly before half-time and added two more in the second half as his side opened up a three-point lead in the qualifying table.
Uruguay dominated from the outset, with Arevalo Rios influential in midfield, but Suarez shot straight at keeper Claudio Bravo in the seventh minute with Edinson Cavani well placed and Bravo then also denied Cavani.
Red alert: Liverpool striker Suarez helped himself to four goals
A free-kick by Suarez hit the crossbar and Cavani shot wide before Suarez finally broke through in the 42nd minute with a left-footed finish.
The second came when Bravo gave the ball away to Cavani, whose shot was kept out on the line by Pablo Contreras but Suarez followed up to score.
Chile had a goal disallowed for offside before Suarez headed in Diego Perez's cross (67) and then rounded off the win in the 73rd minute before being substituted to a standing ovation.
Net result: Suarez bagged two goals in three minutes before half-time
'It's the first time I have scored four goals in the national team, and I'm happy about that,' Suarez said.
'Butthe most important thing is that we won well. We wanted this, in front of our people and against a direct rival for qualification.'
Having reached the semi-finals in the 2010 World Cup and won the Copa America in July, Uruguay are now three points clear of Argentina, who drew 1-1 with Bolivia, and Paraguay, who beat Ecuador 2-1.
Party time: The Uruguay players celebrate after Suarez bags his fourth
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